Autoresponder Software: De Complete Gids voor E-mail Automatiseringstools in 2026

Ontdek de beste autoresponder software voor geautomatiseerde e-mailmarketing. Vergelijk toptools, leer opzetstrategieen en beheers e-mailautomatisering voor je bedrijf.

Tajo
Autoresponder Software?

Autoresponder software heeft de manier waarop bedrijven met klanten communiceren getransformeerd. In plaats van handmatig individuele e-mails te versturen, leveren autoresponders automatisch vooraf geschreven berichten op basis van triggers, timing of abonneeacties. Voor bedrijven die hun e-mailmarketing willen opschalen met behoud van persoonlijke verbindingen, is het begrijpen en implementeren van de juiste autoresponder software essentieel.

Deze uitgebreide gids behandelt alles wat je moet weten over autoresponder software: what it is, how it works, de beste tools beschikbaar in 2026, and step-by-step setup instructions to get you started.

Wat is Autoresponder Software?

Autoresponder software is een type e-mailmarketing tool dat automatisch verzendt vooraf geplande of trigger-gebaseerde e-mails naar abonnees. Wanneer iemand zich aanmeldt voor je e-maillijst, een aankoop doet of een specifieke actie onderneemt, levert de autoresponder het juiste bericht op het juiste moment zonder handmatige interventie.

How Autoresponders Work

Het basismechanisme volgt dit patroon:

  1. Trigger Event: Een abonnee voert een actie uit (meldt zich aan, klikt op een link, doet een aankoop, verlaat een winkelwagen)
  2. Condition Check: De software evalueert of de abonnee aan criteria voldoet voor de autoresponder sequentie
  3. Message Delivery: De juiste e-mail wordt onmiddellijk of na een opgegeven vertraging verzonden
  4. Sequence Continuation: Volgende e-mails volgen op basis van het gedefinieerde schema of abonneegedrag

Typen Autoresponders

Time-Based Autoresponders Deze versturen e-mails op basis van verstreken tijd sinds het trigger-event. Example: Day 1 welkomst e-mail, Day 3 tips email, Day 7 offer email.

Behavior-Based Autoresponders Deze reageren op specifieke abonneeacties. Example: Een follow-up sturen wanneer iemand op een productlink klikt maar niet koopt.

Event-Based Autoresponders Deze worden getriggerd bij specifieke gelegenheden. Example: Verjaardag e-mails, jubileumberichten of herinneringen voor abonnementsvernieuwing.

Transactional Autoresponders Deze bevestigen acties en bieden noodzakelijke informatie. Example: Orderbevestigingen, verzendmeldingen, wachtwoord reset e-mails.

Waarom Your Business Needs Autoresponder Software

Directe Reactie op Klantacties

Wanneer iemand zich om 2 uur ‘s nachts aanmeldt voor je nieuwsbrief, verwachten ze een bevestiging. Zonder autoresponders moet die nieuwe abonnee mogelijk uren of dagen wachten op een welkomst e-mail. Tegen die tijd is hun interesse bekoeld. Autoresponders zorgen ervoor dat elke abonnee direct engagement ontvangt, ongeacht wanneer ze zich aanmelden.

Nadelenistent Aangepaster Experience

Handmatige e-mailprocessen leiden tot inconsistentie. De ene klant ontvangt misschien een welkomstsequentie terwijl een andere vergeten wordt. Autoresponders garanderen dat elk contact dezelfde kwaliteitservaring ontvangt, met behoud van merkstandaarden in alle communicatie.

Schaalbaarheid Zonder Evenredige Inspanning

Naarmate je e-maillijst groeit van 100 to 10,000 to 100,000 subscribers, schalen je autoresponders automatisch. Dezelfde sequenties die je eerste honderd abonnees betrokken hielden werken identiek voor je hundred-thousandth, zonder extra personeel of middelen nodig te hebben.

Omzet Genereren Terwijl Je Slaapt

Goed opgestelde autoresponder sequenties genereren 24/7 omzet. Verlaten winkelwagen e-mails herstellen verloren verkopen. Welkomstsequenties converteren abonnees naar klanten. Win-back campagnes betrekken verloren kopers opnieuw. Allemaal zonder doorlopende handmatige inspanning.

Datagedreven Optimalisatie

Autoresponder software biedt gedetailleerde analytics over openingspercentages, klikpercentages en conversiemetrics. Deze data maakt continue verbetering van je e-mailsequenties mogelijk, en maximaliseert hun effectiviteit in de loop van de tijd.

The 10 Best Autoresponder Software Tools in 2026

1. Brevo (Formerly Sendinblue)

Het beste voor: Multichannel automation and e-commerce integration

Brevo onderscheidt zich als een uitgebreid marketing platform that combines email autoresponders with SMS, WhatsApp, and advanced automatiseringsmogelijkheden. Its per-e-mail prijzen model makes it particularly cost-effective voor bedrijven with large contact lists.

Key Autoresponder Features:

  • Visual workflow builder for complex automation sequences
  • Multichannel autoresponders (email, SMS, WhatsApp)
  • Transactional email handling ingebouwd
  • Geavanceerd segmentatie and personalisatie
  • A/B testen within automatiseringsworkflows
  • Realtime behavioral triggers

Pricing: Free plan includes 300 emails/day with onbeperkte contacten. Betaalde plannen start at $9/maand for 5,000 emails.

Why Brevo Excels: Unlike competitors charging per contact, Brevo’s per-e-mail prijzen means you never pay for inactive subscribers. Combined with multichannel capabilities, it offers exceptional value voor groeiende bedrijven.

Verbeterd met Tajo: In combinatie met Tajo, Brevo gains diepe Shopify integratie with realtime klantgegevens synchronization, volledige ordergeschiedenis tracking, and ingebouwd loyaliteitsprogramma management. This combination transforms Brevo into de meest powerful e-commerce autoresponder solution beschikbaar.

2. Mailchimp

Het beste voor: Small businesses and beginners

Mailchimp remains popular for its user-friendly interface and extensive templatebibliotheek. Its Klantreiss feature provides visual automation building, though advanced features require higher-tier plans.

Key Autoresponder Features:

  • Pre-built automation templates
  • Aangepaster journey builder
  • Predictive sending optimization
  • Content optimizer with AI assistance
  • E-commerce integrations

Pricing: Free plan limited to 500 contacts. Betaalde plannen start at $13/maand.

Limitations: Contact-based pricing becomes expensive as lists grow. SMS limited to US only. Nee WhatsApp support. Automation features restricted op lagere niveaus.

3. ActiveCampaign

Het beste voor: Geavanceerd automation requirements

ActiveCampaign offers some of de meest sophisticated automatiseringsmogelijkheden beschikbaar, inclusief conditional logic, lead scoring, and CRM integration within the same platform.

Key Autoresponder Features:

  • Geavanceerd conditional branching
  • Predictive sending
  • Site tracking and behavior automation
  • Ingebouwd CRM with sales automation
  • Machine learning predictions

Pricing: Starts at $29/maand for 1,000 contacts.

Considerations: Higher learning curve than simpler alternatiefs. Pricing increases significantly with contact count.

4. ConvertKit

Het beste voor: Creators and content publishers

ConvertKit focuses on bloggers, podcasters, YouTubers, and other content creators. Its autoresponder features emphasize simplicity while providing the essential tools creators need.

Key Autoresponder Features:

  • Visual automatiseringsbouwer
  • Tag-based subscriber organization
  • Landing page builder inbegrepen
  • Creator-focused templates
  • Simple sequence creation

Pricing: Free plan for up to 1,000 subscribers. Betaalde plannen start at $15/maand.

Considerations: Less suited voor e-commerce. Beperkt design customization vergeleken met competitors.

5. GetResponse

Het beste voor: All-in-one marketing needs

GetResponse combines autoresponders with webinar hosting, landingspaginas, and conversion funnels in a single platform.

Key Autoresponder Features:

  • Autoresponder sequences with timing controls
  • Marketing automatisering workflows
  • Conversion funnels
  • Webinar integration
  • AI email generator

Pricing: Free plan limited to 500 contacts. Betaalde plannen start at $19/maand.

6. AWeber

Het beste voor: Reliability and bezorgbaarheid

AWeber has been in the autoresponder business since 1998, building a reputation for uitstekend bezorgbaarheid and straightforward functionality.

Key Autoresponder Features:

  • Drag-and-drop email builder
  • Behavioral automation triggers
  • Pre-built campaigns and templates
  • Smart designer using AI
  • Uitstekend bezorgbaarheid rates

Pricing: Free plan for up to 500 subscribers. Betaalde plannen start at $14.99/maand.

7. Drip

Het beste voor: E-commerce automation

Drip specializes in e-commerce e-mailmarketing with deep integrations for Shopify, WooCommerce, and other platforms.

Key Autoresponder Features:

  • E-commerce-specific workflows
  • Product recommendation automation
  • Aangepaster behavior tracking
  • Revenue attribution
  • Pre-built e-commerce sequences

Pricing: Starts at $39/maand for 2,500 contacts.

8. Klaviyo

Het beste voor: Data-driven e-commerce

Klaviyo has become the go-to solution for many Shopify stores, offering sophisticated segmentatie and automation op basis van klantgegevens.

Key Autoresponder Features:

  • Predictive analytics
  • Dynamic product recommendations
  • Geavanceerd segmentatie
  • SMS automation
  • Revenue tracking per flow

Pricing: Free for up to 250 contacts. Betaalde plannen start at $20/maand.

Considerations: Premium pricing vergeleken met alternatiefs. Can become expensive for larger lists.

9. Constant Contact

Het beste voor: Event marketing and nonprofits

Constant Contact offers solid autoresponder functionality with unique features for event promotion and nonprofit organizations.

Key Autoresponder Features:

  • Automated email sequences
  • Event management tools
  • Social media posting
  • Survey and poll creation
  • Neenprofit pricing discounts

Pricing: Starts at $12/maand for basic email.

10. MailerLite

Het beste voor: Budget-conscious businesses

MailerLite provides generous features on its gratis plan and affordable paid options without sacrificing essential autoresponder functionality.

Key Autoresponder Features:

  • Automation workflows
  • Website and blog builder
  • Landing pages inbegrepen
  • Digital product sales
  • Simple, clean interface

Pricing: Free for up to 1,000 subscribers. Betaalde plannen start at $10/maand.

Functievergelijking: Top Autoresponder Software

FunctieBrevoMailchimpActiveCampaignKlaviyo
Gratis Plan ContactsOnbeperkt500Neene250
Visual Workflow BuilderJaJaJaJa
MultichannelEmail, SMS, WhatsAppEmail, SMS (US)Email, SMSEmail, SMS
E-commerce IntegrationVia TajoNativeNativeNative
CRM InbegrepenJaBasisJaJa
A/B TestingJaJaJaJa
Pricing ModelPer-emailPer-contactPer-contactPer-contact
LoyaliteitsprogrammasVia TajoNeeNeeNee
Best ForGrowing e-commerceBeginnersComplex automationShopify stores

Je Instellen First Autoresponder Sequence: A Step-by-Step Guide

Stap 1: Define Your Autoresponder Goals

Before touching any software, clarify what je wilt your autoresponder to achieve:

Common Autoresponder Goals:

  • Welcome new subscribers and introduce je merk
  • Nurture leads toward a purchase decision
  • Onboard new customers and reduce support requests
  • Recover abandoned shopping carts
  • Re-engage inactive subscribers
  • Deliver lead magnets and content upgrades

Document your specific goal, target audience, and desired outcome before proceeding.

Stap 2: Map Your Email Sequence

Plan each email in your sequence before writing:

Welkomstsequentie Example:

E-mailTimingDoelContent Focus
1ImmediateConfirm signupWelcome, deliver lead magnet, set expectations
2Day 2Build relationshipShare your story, brand values
3Day 4Provide valueBest content or helpful tips
4Day 6Social proofAangepaster testimonials, case studies
5Day 8Soft pitchIntroduction to products/services

Stap 3: Write Your Email Content

Follow these principles for effective autoresponder emails:

Onderwerpregels:

  • Keep under 50 characters for mobile compatibility
  • Create curiosity without being misleading
  • Personalize when possible
  • Test different approaches

Email Body:

  • Lead with value, not sales pitches
  • Write conversationally, as if emailing one person
  • Include one clear call-to-action per email
  • Keep paragraphs short for readability
  • Use formatting (bold, bullets) to aid scanning

Personalisatie:

  • Use subscriber name when beschikbaar
  • Reference their signup source or interest
  • Segment content op basis van behavior
  • Aangepastize recommendations

Stap 4: Configure Your Autoresponder Software

Using Brevo as our example platform:

Creating an Automation Workflow:

  1. Navigate to Automations in your Brevo dashboard
  2. Select Create New Workflow
  3. Choose your trigger (e.g., Contact joins a list)
  4. Add your first email step
  5. Configure the delay before the next email
  6. Add subsequent emails with appropriate delays
  7. Set exit conditions (purchase, unsubscribe, etc.)
  8. Test the workflow with a test contact
  9. Activate the automation

Essential Configuration Settings:

  • Double opt-in confirmation (aanbevolen for compliance)
  • Unsubscribe handling
  • Bounce management
  • Timezone considerations for send timing

Stap 5: Test Your Autoresponder Thoroughly

Before launching, verify everything works correctly:

Testing Checklist:

  • Subscribe using a test email address
  • Confirm all emails arrive as expected
  • Check timing between emails
  • Verify all links work correctly
  • Test on multiple email clients (Gmail, Outlook, Apple Mail)
  • Confirm mobile rendering
  • Test personalisatie tags
  • Verify unsubscribe functionality

Stap 6: Launch and Monitor

After launching your autoresponder:

Key Metrics to Track:

  • Open rate (benchmark: 20-30%)
  • Click-through rate (benchmark: 2-5%)
  • Conversion rate (varies by goal)
  • Unsubscribe rate (should be under 0.5%)
  • Reply rate (indicates engagement)

Optimization Actions:

  • A/B test onderwerpregels
  • Adjust send timing op basis van open data
  • Revise underperforming emails
  • Add or remove emails op basis van engagement patterns

Geavanceerd Autoresponder Strategies

Behavioral Branching

Move beyond linear sequences by creating branches op basis van subscriber behavior:

Example Branching Logic:

  • If subscriber clicks product link: Send product-focused follow-up
  • If subscriber does not open Email 2: Resend with different subject
  • If subscriber purchases: Move to customer onboarding sequence
  • If subscriber clicks pricing: Send case study and offer demo

Lead Scoring Integration

Assign points op basis van engagement and use scores to trigger autoresponders:

Sample Scoring Model:

  • Email open: +1 point
  • Link click: +5 points
  • Product page visit: +10 points
  • Pricing page visit: +20 points
  • Cart creation: +30 points

Score-Based Triggers:

  • Score reaches 50: Trigger sales sequence
  • Score drops below 10: Trigger re-engagement sequence

Multichannel Autoresponders

Combine email with other channels for maximum impact:

Verlaten Winkelwagen Multichannel Sequence:

  1. Hour 1: Email reminder with cart contents
  2. Hour 4: SMS reminder (if opted in)
  3. Day 1: Email with social proof
  4. Day 2: WhatsApp message with support offer
  5. Day 3: Final email with incentive

Brevo blinkt hier uit with native support for email, SMS, and WhatsApp in unified workflows.

Dynamic Content Personalisatie

Aangepastize email content op basis van subscriber data:

Dynamic Elements:

  • Product recommendations op basis van browse history
  • Content suggestions op basis van past engagement
  • Offers tailored to purchase history
  • Location-based messaging
  • Industry-specific case studies

Sunset Policies for Inactive Subscribers

Maintain list health with automated cleanup:

Sunset Sequence:

  1. Day 60 inactive: Send re-engagement email
  2. Day 75 inactive: Send what have you missed email
  3. Day 90 inactive: Final engagement attempt with special offer
  4. Day 105 inactive: Unsubscribe warning with one-click retention
  5. Day 120 inactive: Remove from active list

Autoresponder Best Practices

Bezorgbaarheid Optimalisatie

Ensure your autoresponder emails reach the inbox:

Technical Requirements:

  • Authenticate your domain (SPF, DKIM, DMARC)
  • Use a reputable sending platform
  • Maintain consistent sending patterns
  • Monitor blacklists and afzenderreputatie

Content Practices:

  • Avoid spam trigger words
  • Balance image-to-text ratio
  • Include plain text version
  • Use recognizable sender name

Mobiele Optimalisatie

Over 60% of emails are opened on mobile devices:

Mobile-Friendly Practices:

  • Single-column layouts
  • Large, tappable buttons (minimum 44x44 pixels)
  • Font sizes of 14px or larger
  • Concise onderwerpregels
  • Preview text optimization

Compliance Vereisten

Meet legal obligations for e-mailmarketing:

Key Regulations:

  • CAN-SPAM (US): Require unsubscribe option, physical address, honest onderwerpregels
  • GDPR (EU): Explicit consent vereist, right to access and deletion
  • CASL (Canada): Express consent vereist for commercial messages

Implementation:

  • Use dubbele opt-in when possible
  • Maintain clear consent records
  • Provide easy unsubscribe mechanism
  • Honor requests promptly (within 10 business days maximum)

Content Kalender Integratie

Coordinate autoresponders with your broader marketing:

Avoid Conflicts:

  • Do not send autoresponder emails on major campaign days
  • Pause sequences during holidays or company events
  • Align messaging across all channels
  • Coordinate with promotional calendars

Integreren van Autoresponders with E-commerce

Shopify Integration Options

For Shopify stores, deep integration between your autoresponder and store data essentieel:

Tajo + Brevo Integration:

  • Realtime customer synchronization
  • Complete order history in klantprofielen
  • Product catalog sync for recommendations
  • Abandoned cart event tracking
  • Aangepaster lifecycle event triggers
  • Ingebouwd loyaliteitsprogramma data

This combination enables sophisticated automation:

Example Tajo-Aangedreven Workflow:

  1. Aangepaster abandons cart (detected instantly)
  2. Browse behavior data enriches customer profile
  3. Automated sequence sends personalized recovery emails
  4. Product recommendations op basis van cart contents and browse history
  5. Loyalty points offer inbegrepen for returning customers
  6. SMS follow-up for high-value carts
  7. Revenue tracked and attributed to automation

Aangepaster Data Synchronization

Your autoresponder needs accurate klantgegevens:

Essential Data Points:

  • Purchase history
  • Browse behavior
  • Loyalty program status
  • Aangepaster lifetime value
  • Segment membership
  • Communication preferences

Tajo automates this synchronization between Shopify and Brevo, ensuring your autoresponders always use current, accurate data.

Revenue Attribution

Track which autoresponders generate revenue:

Attribution Setup:

  • Enable revenue tracking in your autoresponder platform
  • Set appropriate attribution windows (7-day, 30-day)
  • Track both email-attributed and influenced revenue
  • Compare performance across sequences

Measuring Autoresponder Success

Key Performance Indicators

Engagement Metrics:

  • Open rate by sequence and individual email
  • Click-through rate
  • Reply rate
  • Forward and share rate
  • List growth rate

Revenue Metrics:

  • Revenue per email sent
  • Revenue per subscriber
  • Conversion rate by sequence
  • Gemiddeld order value from email
  • Aangepaster lifetime value impact

Health Metrics:

  • Unsubscribe rate
  • Complaint (spam report) rate
  • Bounce rate (hard and soft)
  • List churn rate

Benchmarking Your Results

Compare your results against industry standards:

MetricGemiddeldGoedUitstekend
Openingspercentage20%25%30%+
Click Rate2.5%4%6%+
Conversieratio1%2%3%+
Uitschrijvingspercentage0.3%0.2%0.1%
Bouncepercentage2%1%0.5%

Continuous Improvement Process

Monthly Review Checklist:

  • Analyze performance of each active sequence
  • Identify underperforming emails
  • Test new onderwerpregels and content
  • Review segment performance
  • Update outdated content
  • Check for technical issues

Quarterly Optimization:

  • Review full klantreis
  • Assess sequence length effectiveness
  • Test new automation triggers
  • Evaluate tool performance
  • Consider platform changes if needed

Veelgestelde Vragen

Wat is the difference between autoresponders and email automation?

Autoresponders traditionally refer to simple time-based email sequences triggered by a subscription. Email automation is a broader term encompassing any automated email workflow, inclusief behavioral triggers, conditional logic, and complex branching. Modern autoresponder software typically includes full automatiseringsmogelijkheden, making the terms largely interchangeable today.

How many emails should be in an autoresponder sequence?

There is no single correct answer, but here are guidelines by sequence type:

  • Welkomstsequentie: 3-5 emails over 1-2 weeks
  • Abandoned cart: 3-4 emails over 3-5 days
  • Onboarding: 5-7 emails over 2-4 weeks
  • Nurture/educational: 6-12 emails over 4-8 weeks
  • Win-back: 3-4 emails over 2-4 weeks

Monitor engagement metrics and adjust sequence length op basis van when subscribers stop engaging.

How often should autoresponder emails be sent?

Frequency depends on je doelgroep and content:

  • Aggressive (e-commerce): Daily or every other day
  • Standard: 2-3 times per week
  • Conservative (B2B): Weekly
  • Long nurture: Bi-weekly

Test different frequencies and monitor uitschrijvingspercentages to find your optimal cadence.

Can I use autoresponders without a website?

Ja. Je kunt collect email addresses through:

  • Social media links to landingspaginas
  • In-person collection (events, retail)
  • Partner promotions
  • Lead generation ads
  • QR codes

Most autoresponder platforms include landingspagina builders, eliminating the need for a separate website.

How do I improve autoresponder openingspercentages?

Onderwerpregel Optimization:

  • Keep under 50 characters
  • Create curiosity
  • Use personalisatie (name, company)
  • Avoid spam triggers
  • A/B test consistently

Sender Optimization:

  • Use recognizable sender name
  • Maintain consistent from address
  • Build afzenderreputatie over time

Timing Optimization:

  • Test different send times
  • Consider subscriber timezone
  • Use send-time optimization features

What happens when someone unsubscribes from an autoresponder?

When properly configured:

  1. Subscriber is immediately removed from the active sequence
  2. Nee further autoresponder emails are sent
  3. They remain unsubscribed until they re-opt-in
  4. Transactional emails (order confirmations) may still be sent
  5. Compliance records are maintained

Should I use plain text or HTML emails for autoresponders?

Both have merits:

HTML Emails:

  • Better for product showcases
  • Enables branding and design
  • Supports images and buttons
  • Higher visual impact

Plain Text Emails:

  • Feel more personal
  • Better bezorgbaarheid sometimes
  • Load faster
  • Nee rendering issues

Many successful businesses use HTML for promotional content and plain text for relationship-building sequences. Test both approaches with je doelgroep.

How do I handle different time zones in autoresponders?

Options:

  1. Send by recipient timezone: Most modern platforms support this
  2. Universal send time: Find de beste single time for je doelgroep
  3. Optimal send time algorithms: Let AI determine de beste time per subscriber

Brevo and other advanced platforms offer timezone-aware sending and predictive send-time optimization.

Can autoresponders work with SMS and other channels?

Ja. Multichannel autoresponders combine:

  • Email messages
  • SMS texts
  • WhatsApp messages
  • Push notifications
  • In-app messages

Brevo blinkt hier uit with native multichannel automation. A single workflow can send email, wait for response, send SMS follow-up if no email engagement, and escalate to WhatsApp for high-value opportunities.

How do I measure autoresponder ROI?

Calculate ROI:

  1. Track revenue attributed to autoresponder sequences
  2. Subtract software costs
  3. Subtract content creation time costs
  4. Divide net profit by total cost

Example:

  • Monthly autoresponder revenue: $10,000
  • Software cost: $100/maand
  • Time investment: $400/maand (estimate)
  • Net profit: $9,500
  • ROI: $9,500 / $500 = 1,900%

Autoresponders typically generate exceptional ROI once established, as the primary investment is upfront creation with minimal ongoing costs.

Conclusie

Autoresponder software is no longer optioneel voor bedrijven serious about e-mailmarketing. The ability to automatically engage subscribers at the right moment with the right message drives conversions, builds relationships, and generates revenue around the clock.

When selecting autoresponder software, consider your specific needs:

  • For multichannel automation and value: Brevo offers email, SMS, and WhatsApp capabilities with cost-effective per-e-mail prijzen
  • For e-commerce: Brevo gecombineerd met Tajo biedt de deepest Shopify integration with ingebouwd loyaliteitsprogrammas
  • For beginners: Mailchimp biedt de gentlest learning curve
  • For complex automation: ActiveCampaign biedt de most sophisticated workflow capabilities

The key is to start. Your first autoresponder sequence does not need to be perfect. Launch a basic welkomstsequentie, learn from the data, and iterate. Over time, your autoresponders will become sophisticated revenue-generating assets.

Klaar om te implementeren powerful autoresponders voor je e-commerce store? Begin met Tajo to connect your Shopify data with Brevo and build multichannel automatiseringsworkflows that convert browsers into loyal customers.

Start gratis met Brevo