Audience
Email professionals that need a transactional email platform
About Postmark
ActiveCampaign Postmark is the email delivery service that developers and product teams actually like. Send transactional and marketing emails and get them to the inbox, every time. Postmark maintains one of the best delivery reputations in the industry by routing transactional and promotional messages through parallel but separate sending infrastructure.
Other Popular Alternatives & Related Software
SMTP.com
Reliable SMTP relay and email delivery services. Powerful email delivery services that enable you to send and track high volume emails effortlessly. Integrate and start sending in minutes. All your transactional, email relay and email delivery needs under one roof. Whether you need a low-latency email delivery provider for your transactional emails, scalable infrastructure for high-volume sends or reliable backend solution for your marketing campaigns, SMTP is built to deliver. Reputation Defender is SMTP’s proprietary technology that uses big data to proactively monitor your email list health and safeguard your domain and IP reputation among ISPs by suppressing bad emails in your sends from hard and soft bounces. This ensures your delivery rates and inbox placement incrementally gets better over time.
Learn more
ClickSend
ClickSend is a simple, global SMS platform built for developers and the businesses they support. Built on a battle-tested API that always delivers with:
- Billions of messages delivered globally
- Direct routes only to 190+ countries
- 99.95%+ uptime
- Lightning-fast delivery
- Pay-as-you-go pricing — no lock-ins
- 24/7 support from people who actually understand APIs
- It works straight out of the box — and keeps working as you scale.
Already use Zapier, ActiveCampaign, Make or Power Automate? There are pre-built integrations ready to go.
Sign up and send your first message in minutes with free test credits.
Perfect for: alerts, 2FA codes, marketing campaigns and transactional messaging.
Learn more
Kingmailer
KingSMTP.com (formerly known as Kingmailer.co, founded in 2017) is a Transactional SMTP service provider. It’s designed to help businesses reliably send emails such as order confirmations, password resets, or notifications, but it’s not intended for mass email campaigns or marketing.
Learn more
Critical Impact
Critical Impact allows you to enhance and simplify your email marketing campaigns. Our tools let you effectively manage your email and SMS lists, send personalized and automated emails, along with text messages (SMS) for your marketing campaigns all at a competitive price model. Our subscriber scoring algorithms will mine your data to quickly identify those subscribers who are most likely to read your next email, consume additional emails, or make another purchase.
With our easy-to-use interface, you can schedule messages to send in minutes. Select your send options all on one page, and then prevent mistakes by seeing a confirmation of all your send details. Even A/B test your email across device screens – from phones to tablets to monitors.
Learn more
Pricing
Starting Price:
$10/month for 10,000 emails
Free Version:
Free Version available.
Free Trial:
Free Trial available.
Company Information
ActiveCampaign
Founded: 2010
United States
postmarkapp.com
Videos and Screen Captures
Other Useful Business Software
Stop Storing Third-Party Tokens in Your Database
Rolling your own OAuth token storage can be a security liability. Token Vault securely stores access and refresh tokens from federated providers and handles exchange and renewal automatically. Connected accounts, refresh exchange, and privileged worker flows included.
Product Details
Platforms Supported
Cloud
Training
Documentation
Support
Phone Support
Online
Postmark Frequently Asked Questions
Postmark Product Features
Transactional Email
Dynamic Content
Reporting/Analytics
Template Management
A/B Testing
Contact Database
Email Monitoring
Mailing List Management
Spam Check
