Postmark

I use Postmark currently and have used it since November 2020. I use it as an SMTP for transactional email on a bunch of websites (25+). It has been as close to perfect as I've experienced with most any SaaS I've used in the last decade, and I've used a lot of SaaS. I used to use website servers for transactional email (terrible, opaque experience), then eventually moved over to Sendgrid (issues with spam and not great reporting), and finally settled on Postmark.

I love how I get a weekly email for each website with a summary of the total emails sent through Postmark, and bounces (if any). Usually, if there are bounces it's because someone put in the wrong email (occasionally because someone sent a prior email to spam). This has been useful to tell e-commerce clients when one of their customers didn't receive the confirmation email due to entering the wrong email during purchase.

Everything about Postmark is great - support, setup, product, visibility into what's going on. I wasn't sure what to expect when ActiveCampaign bought it, but so far, no change. A+, highly recommend for transactional email.

• Weekly emails with insight into status of all emails sent through the system
• Easy DNS setup
• Easy to use dashboard

• Made me feel confident in my ability to offer reliable transactional email for websites we're hosting. Great for ongoing peace of mind.

Twilio SendGrid

I use Postmark to send all transactional emails for a web-based baseball simulation game that I created called Pennant Wars.

Some examples of transactional emails are for new user sign-up, order confirmation, password reset, and emails dynamically alerting users about in-game occurrences (end of a season, monthly team report, etc.).

• Ease of use
• Cost efficient
• Stability
• Spam/bounce webhook integration

• It is really "set and forget." I have not had any issues that I've needed to deal with. It just works.

We send primarily transactional email - notifications for verifying user email addresses, for new messages received, and alerts based upon user preferences. We also send occasional, more generic broadcast emails to subsets of the user base. Postmark has been the most effective email provider in ensuring that emails end up in user inboxes. This is especially critical for us, considering we require email verification to begin using our services.

• Email deliverability
• Bounce tracking
• API for getting delivered, opened and clicked records

• Customer service isn't wasting time on "email wasn't received" problems
• Customer service can better understand customer problems by seeing what emails someone received and if they opened/clicked on them
• Customer engagement is higher because they are receiving emails from our application consistently

Mailgun and from Pathwire

Vonage Communications APIs, Heroku Platform

• Fewer support requests for "I have not received my order email!??!111"
• More happy customers receiving their orders faster

Mailgun, SparkPost, Sendgrid Transactional Email and Amazon Simple Email Service

• Password reset emails are almost always delivered.
• Many of our services are reliant on email delivery, and we have had consistent results with Postmark.

Mandrill

productboard, Airtable, GitHub, VISCO, Jira Software, InVision, Zeplin, Zoom, Chili Piper