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Postal alternatives

Postal is free to start with paid plans from None; self-hosted, infrastructure costs only. Here are the other 102 platforms in this directory, with the same fact set for each: free tier, starting price, API, and MCP support.

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  beehiivAPIMCP

  Newsletters, podcasts, and community in one platform · Free tier · from $43/mo (Scale, annual billing); tiered by subscriber count

  www.beehiiv.com
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  SubstackAPIMCP (community)

  Writers making money doing the work they believe in · Free tier · from No monthly fee; 10% of paid subscription revenue plus Stripe fees

  substack.com
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  MailchimpAPIMCP

  Email and SMS marketing minus the learning curve · Free tier · from $13/mo (Essentials, 500 contacts); scales with contact count

  mailchimp.com
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  AWeberAPIMCP (community)

  Email marketing for small businesses · Free tier · from $12.49/mo (Lite, annual billing); scales with subscriber count

  www.aweber.com
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  FlodeskAPIMCP

  Design-first email marketing for small businesses · Free tier · from $25/mo (Lite, up to 1,000 subscribers); subscriber-based

  flodesk.com
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  BigMailerAPI

  Email marketing for agencies and multi-brand teams · Free tier · from $7.50/mo per 5,000 contacts (Business Lite); contact-count based

  www.bigmailer.io
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  Kit (formerly ConvertKit)APIMCP

  Email-first operating system for creators · Free tier · from $39/mo (Creator, at 1,000 subscribers); subscriber-based

  kit.com
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  Constant ContactAPIMCP (community)

  Digital and email marketing for small businesses · from $12/mo (Lite); contact-count based

  www.constantcontact.com
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  Campaign MonitorAPIMCP (community)

  Straightforward email marketing for growing businesses · Free tier · from $12/mo (Lite); subscriber-count based

  www.campaignmonitor.com
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  MoosendAPI

  Intuitive email marketing and automation platform · from $9/mo (Pro, 500 subscribers); subscriber-count based

  moosend.com
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  EmailOctopusAPI

  Budget-friendly, simple email marketing · Free tier · from $9/mo (Pro, billed yearly); scales with subscriber count

  emailoctopus.com
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  GetResponseAPI

  All-in-one marketing (email, automation, webinars) · from $19/mo (Starter, 1,000-contact list); list-size based

  www.getresponse.com
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  DripAPIMCP

  Ecommerce brands · from $39/mo (up to 2,500 people); scales with list size and sends

  www.drip.com
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  ActiveCampaignAPIMCP

  Marketing automation plus CRM · from $15/mo (Starter, 1,000 contacts); contact-based

  www.activecampaign.com
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  KlaviyoAPIMCP

  Ecommerce/B2C brands running email + SMS on customer data · Free tier · from $20/mo (email, up to 500 profiles); active-profile based

  www.klaviyo.com
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  OmnisendAPIMCP

  Ecommerce email + SMS · Free tier · from $11.20/mo (Standard, up to 500 contacts); contact-based

  www.omnisend.com
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  Benchmark EmailAPI

  Small businesses wanting powerfully simple email · Free tier · from $27/mo (Pro, 2,500-contact minimum tier); contact-based

  www.benchmarkemail.com
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  iContactAPI

  Beginners wanting easy business email marketing · from $9/mo after trial; contact-count based

  www.icontact.com
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  EmmaAPI

  Multi-team, multi-location orgs and franchises · from Custom quote (Lite/Teams/Corporate; contact sales)

  myemma.com
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  SenderAPI

  Growing small businesses on a budget · Free tier · from $7/mo (Standard); subscriber-based

  www.sender.net
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  StripoAPI

  Designing HTML email templates without code · Free tier · from $20/mo (Basic)

  stripo.email
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  SendloopAPI

  Small businesses wanting simple email marketing · Free tier · from $39/mo (Pro, up to 45,000 subscribers)

  sendloop.com
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  Twilio SendGridAPIMCP

  Developers sending email at scale via API · from $19.95/mo (Essentials)

  sendgrid.com
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  MailjetAPIMCP

  Teams sending marketing and transactional email together · Free tier · from $9/mo (Starter, 8,000 emails/mo)

  www.mailjet.com
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  PostmarkAPIMCP

  Developers needing fast, reliable transactional email · Free tier · from $15/mo (Basic, 10,000 emails)

  postmarkapp.com
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  SendPulseAPIMCP

  Multichannel marketing (email, SMS, chatbots) on a budget · Free tier · from EUR 8.80/mo (Standard, billed annually)

  sendpulse.com
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  Zoho CampaignsAPI

  SMBs already in the Zoho ecosystem · Free tier · from $3/mo (Standard, billed annually)

  www.zoho.com/campaigns
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  BrevoAPIMCP

  SMBs wanting all-in-one marketing plus CRM · Free tier · from $9/mo (Starter)

  www.brevo.com
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  MailWizzAPI

  Self-hosters and agencies running their own ESP · from $59/yr or $79 one-time lifetime (Regular license)

  www.mailwizz.com
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  HubSpot Marketing HubAPIMCP

  Marketing teams on an all-in-one CRM platform · Free tier · from $20/mo/seat (Starter; $7/mo/seat new-customer promo)

  www.hubspot.com
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  MailPoetAPI

  WordPress/WooCommerce sites sending email from WP · Free tier · from $10/mo (Business at 500 subscribers; subscriber-based)

  www.mailpoet.com
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  MailgunAPIMCP

  Developers sending transactional email via API · Free tier · from $15/mo (Basic, 10,000 emails/mo)

  www.mailgun.com
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  Elastic EmailAPIMCP

  Budget-focused senders wanting marketing tools plus an email API · Free tier · from $29/mo (Starter, up to 2,500 contacts; contact-based)

  elasticemail.com
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  MailUpAPI

  Businesses and agencies doing email + SMS with unlimited sends · from EUR 48/mo (Starter, billed annually; pay-per-speed, unlimited sends)

  mailup.com
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  Pepipost (Netcore Email API)APIMCP

  High-volume transactional email at enterprise scale · Free tier · from Not listed publicly; contact sales

  netcore.ai
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  MailerLiteAPIMCP

  Solopreneurs and small businesses on a budget · Free tier · from $12/mo (Comfort; subscriber-based)

  www.mailerlite.com
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  GhostAPI

  Independent publishers combining site, newsletter, and memberships · from $18/mo (Starter, billed yearly; member-count based)

  ghost.org
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  ButtondownAPI

  Indie writers wanting a minimal, API-first newsletter · Free tier · from $9/mo (subscriber-based)

  buttondown.com
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  LoopsAPI

  SaaS teams sending product, marketing, and transactional email · Free tier · from $49/mo (contact-based; unlimited sends)

  loops.so
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  AcumbamailAPIMCP (community)

  Email + SMS campaigns for SMEs and agencies · Free tier · from EUR 18/mo (Basic)

  acumbamail.com
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  Amazon SESAPIMCP

  High-volume sending at lowest unit cost · from $0.10 per 1,000 emails (pay-as-you-go)

  aws.amazon.com/ses
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  BentoAPIMCP

  SaaS founders and small businesses · from $29/mo

  bentonow.com
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  Bloomreach EngagementAPIMCP

  E-commerce personalization · from Custom quote

  www.bloomreach.com/en/products/engagement
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  BlueshiftAPIMCP (community)

  Lean teams scaling cross-channel engagement · from From $1,250/mo (Starter, billed annually)

  blueshift.com
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  BrazeAPIMCP

  Cross-channel customer engagement at scale · from Custom quote

  www.braze.com
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  CampaignerAPI

  Advanced email marketing without full-suite cost · from $14/mo (Essentials, 1,000 contacts)

  www.campaigner.com
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  CircleAPIMCP (community)

  Creators unifying audience email and community in one platform · Free tier · from Professional $89/mo + Email Hub add-on (free under 100 contacts; +$99/mo at 10K contacts)

  circle.so
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  CleverReachAPIMCP (community)

  GDPR-compliant newsletters for SMEs · Free tier · from EUR 15/mo

  www.cleverreach.com
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  ClickFunnelsAPI

  Entrepreneurs running sales campaigns without tech skills · Free tier · from $97/mo Launch ($81/mo annual): 10K contacts, 50K emails/mo; automation workflows from Scale $197/mo

  www.clickfunnels.com
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  CordialAPI

  Real-time messaging for enterprise consumer brands · from Custom quote

  cordial.com
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  Customer.ioAPIMCP

  Data-driven personalized customer journeys · from $100/mo

  customer.io
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  DotdigitalAPIMCP

  Mid-market and enterprise cross-channel marketing teams · from Custom quote

  dotdigital.com
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  SAP Engagement CloudAPI

  Personalized omnichannel engagement at scale · from Custom quote

  www.sap.com/products/crm/emarsys.html
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  EnchargeAPI

  Behavior-based emails and onboarding for B2B SaaS · from $79/mo (annual, up to 2,000 subscribers)

  encharge.io
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  FluentCRMAPIMCP (community)

  Email marketing automation inside WordPress · Free tier · from $90/yr single-site license (reg. $129/yr)

  fluentcrm.com
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  GMassAPIMCP (community)

  Cold email outreach and mass email inside Gmail · from $20/mo (Standard, billed annually; $29.95 monthly)

  www.gmass.co
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  GoDaddy Websites + Marketing EmailMCP

  Small businesses emailing customers from their GoDaddy website · Free tier · from $9.99/mo Basic (annual) with 100 email sends/mo; Premium $14.99/mo = 25,000 sends/mo

  www.godaddy.com/websites/website-builder
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  HighLevel (GoHighLevel)APIMCP

  Agencies and SMBs wanting marketing, CRM, and sending in one place · Free tier · from $97/mo Starter + LC Email usage ~$0.675 per 1,000 emails

  www.gohighlevel.com
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  IterableAPIMCP

  Enterprise brands running cross-channel engagement · from Custom quote

  iterable.com
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  Kajabi EmailAPIMCP

  Creators replacing separate email tools with an all-in-one platform · Free tier · from $69/mo Kickstarter ($55/mo annual), marketing emails included, 250 contacts

  kajabi.com
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  KartraAPI

  Solopreneurs running funnels, checkout, and email in one platform · from $59/mo Essentials (500 contacts, 10,000 emails/mo); Starter $119/mo has unlimited emails

  kartra.com
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  KeilaAPIMCP (community)

  Privacy-conscious newsletters powered by open source · Free tier · from EUR 8/mo (Keila Cloud XS, 2,000 emails/mo)

  www.keila.io
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  ListmonkAPIMCP (community)

  Performance and features in a single binary · Free tier · from Free (open source)

  listmonk.app
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  ListrakAPI

  Retail and e-commerce cross-channel personalization · from Custom quote

  www.listrak.com
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  MailBlusterAPIMCP (community)

  Sending bulk email at low cost via Amazon SES · Free tier · from $60/yr Pro (per brand) + $0.60 per 1,000 emails

  mailbluster.com
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  MailcoachAPIMCP

  Bootstrappers, creators, and developers · from $9.99/mo hosted (2,000 emails); self-hosted license $249 one-time

  mailcoach.app
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  MailerSendAPIMCP

  Transparent pricing from side projects to agencies · Free tier · from $5.60/mo billed yearly (Hobby, 5,000 emails)

  www.mailersend.com
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  MailmeteorMCP (community)

  Sales, marketing, and recruiting outreach from Gmail · Free tier · from $5.99/mo (Starter, per user)

  mailmeteor.com
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  MailmodoAPIMCP

  Interactive emails that drive conversions · from $149/mo (Lite, billed annually)

  www.mailmodo.com
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  MailrelayAPI

  High-volume sending on a free plan · Free tier · from EUR 48/mo (100,000 emails); prepaid packs from EUR 40

  mailrelay.com
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  Mailster

  Self-hosted newsletters without subscription fees · from $39 first yr Starter (promo; reg. $79/yr)

  mailster.co
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  MailtrapAPIMCP

  Testing and sending in one platform · Free tier · from $15/mo (Email API Basic, 10,000 emails)

  mailtrap.io
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  Adobe Marketo EngageAPIMCP (community)

  B2B lead management and ABM · from Custom quote

  business.adobe.com/products/marketo/adobe-marketo.html
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  MoEngageAPIMCP

  Enterprise consumer brands (retail, fintech, media) · from Quote-only (contact sales)

  www.moengage.com
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  OmedaAPIMCP

  Media companies, publishers, events businesses, and associations · Free tier · from Custom quote (no published pricing)

  www.omeda.com
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  OneSignalAPIMCP

  Product teams wanting push, email, and SMS in one platform · Free tier · from $19/mo (Growth: 20,000 email sends included, then $1.50 per 1,000)

  onesignal.com
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  OngageAPI

  High-volume email senders using multiple SMTP/ESP connections · Free tier · from $399/mo (Starter, up to 1M emails/SMS per month)

  www.ongage.com
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  Oracle Eloqua Marketing AutomationAPIMCP (community)

  Enterprise B2B campaign orchestration · from From $2,000/mo (Basic, 10,000 contacts, per Oracle price list)

  www.oracle.com/cx/marketing/automation
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  Oracle Responsys Campaign ManagementAPI

  High-volume B2C email campaigns · from Custom quote (price list is per 1,000 interactions, annual minimums)

  docs.oracle.com/en/cloud/saas/marketing/responsys.html
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  OrttoAPIMCP

  Journeys that drive revenue on unified customer data · from Custom quote

  ortto.com
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  ParagraphAPIMCP

  Early-stage startups and founder-led teams · Free tier · from $16/mo (Starter, billed annually)

  paragraph.com
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  Podia Email

  Creators running email, courses, and community in one place · from $42/mo Mover, email included up to 100 subscribers

  www.podia.com/email
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  PrivyAPIMCP (community)

  Small ecommerce stores growing sales with email and SMS · Free tier · from $30/mo

  www.privy.com
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  ResendAPIMCP

  Developer-first transactional email · Free tier · from $20/mo (Pro, 50,000 emails)

  resend.com
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  RoblyAPI

  Small businesses seeking higher open rates · from $15/mo (annual, up to 500 contacts)

  www.robly.com
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  Sailthru (Zeta Global)API

  Media, publishing, and retail brands · from Custom quote

  zetaglobal.com/sailthru
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  Salesforce Marketing Cloud EngagementAPIMCP (community)

  Enterprise B2C email and journey marketing · from From $2,000/mo (Pro+ edition, billed annually)

  www.salesforce.com/marketing/engagement
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  Seguno

  Shopify merchants who want email marketing inside the Shopify admin · Free tier · from $35/mo

  www.seguno.com
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  SelzyAPI

  Small businesses starting with email · Free tier · from $7.50/mo (Lite, up to 100 contacts)

  selzy.com
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  SendFoxAPI

  Affordable email marketing for content creators · Free tier · from $29 one-time (Lifetime); Pro from $19/mo

  sendfox.com
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  SendLayerAPIMCP

  Email deliverability without high costs · from $5/mo billed annually (Starter, 1,000 emails)

  sendlayer.com
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  SendyAPIMCP (community)

  Newsletter sending without monthly fees · from $69 one-time license

  sendy.co
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  Shopify EmailAPIMCP

  Emails built for commerce · Free tier · from Included with any Shopify plan; overage $1 per 1,000 emails past the free 10k

  www.shopify.com/email-marketing
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  SmartrMailAPIMCP (community)

  Ecommerce stores wanting simple automated product emails · Free tier · from $14/mo

  www.smartrmail.com
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  SMTP.comAPI

  Managed high-volume email delivery · from $25/mo (Essential, 50,000 emails, shared IP)

  www.smtp.com
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  SMTP2GOAPIMCP (community)

  Reliable delivery with hands-on support · Free tier · from $10/mo (Starter, 10,000 emails)

  www.smtp2go.com
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  SocketLabsAPI

  Email sending plus performance analytics · from $39.95/mo (Core, 40,000 emails)

  www.socketlabs.com
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  Squarespace Email CampaignsAPIMCP (community)

  Effortless on-brand email for Squarespace sites · Free tier · from Separately billed add-on tiered by sends; entry price shown in-account (third-party reports ~$8/mo annual)

  www.squarespace.com/email-marketing
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  Systeme.ioAPIMCP

  Launching an online business with one tool · Free tier · from $17/mo (Startup)

  systeme.io
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  VerticalResponseAPI

  Easy email marketing for small businesses · from $13/mo (Basic, under 500 contacts)

  www.verticalresponse.com
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  Wix Email MarketingAPIMCP

  Professional campaigns that drive site traffic · Free tier · from Paid Email Marketing plans upgraded in-dashboard (third-party reports from ~$10/mo)

  www.wix.com/ascend/email-marketing
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  YAMM (Yet Another Mail Merge)

  Freelancers, educators, and small businesses merging from Sheets · Free tier · from $25/yr (Pro, gmail.com accounts; annual billing only)

  yamm.com

Compare the whole field

The comparison table shows all 103 platforms in one view, including Postal.