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Postmark
The email delivery service that people actually like. By ActiveCampaign.
4.6

( 25 )

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Postmark Reviews & Product Details

Postmark Overview
What is Postmark?

Postmark is a cloud-based email delivery service designed for sending transactional emails. Unlike traditional email marketing services which are geared towards sending newsletters and promotional emails, Postmark specializes in sending emails that are triggered by user actions, such as password resets, order confirmations, and welcome messages.

Company ActiveCampaign
Year founded 2003
Company size 1001-5000 employees
Headquarters Chicago, IL
Social Media
Managed by:
Axel Grubba
Founder
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5.0

( 1 )

$29.00/month
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What are the pros and cons of Postmark?
Postmark Product Details
Capabilities
API
Segment
Small Business
Enterprise
Deployment Cloud / SaaS / Web-Based, Mobile iPhone
Training Documentation
Languages English
Postmark Features
A/B Testing
API Integration
Analytics/Reporting
Attachment Support
Bounce Management
Contact Management
Content Filtering
Custom Domains
DKIM & SPF Setup
Dedicated IPs
Delivery Optimization
Dynamic Content
Email Authentication
Email Encryption
Email Queuing
Email Scheduling
Email Template Management
Email Tracking
GDPR Compliance
Geolocation Tracking
Link Tracking
Multi-User Access
Multilingual Support
Personalization
Real-time Notifications
SMTP Relay
Spam Testing
Subaccount Management
Transactional SMS
Webhooks
Postmark Media
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Postmark Homepage
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Our research is curated from diverse authoritative sources and meant to offer general advice. We don’t guarantee that our suggestions will work best for each use-case, so consider your unique needs when choosing products and services. Feel free to share your feedback.
Last updated: September 04, 2025
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25 Postmark Reviews
4.6 out of 5
Small Business (50 or fewer emp.)
Jul 13, 2023
 Source
Overall Rating:
5.0
AG
Verified Reviewer
Founder
Share
"By far, the best solution for Transactional Emails on the Market!"
What do you like best about Postmark?

Postmark has come to change the way we send confirmation and transactional emails to our users. Purchase confirmation emails, user activation, and purchase reminders (you name them) ended up in the spam section, bounced or in the promotional folder of our clients. Thanks to Postmark, these emails arrive promptly and when users need them. ActiveCampaign Postmark has helped our sales, shipping, logistics, and other essential user notifications reach their inboxes without having to go through the hassle of getting them in the spam folder or getting lost. The emails arrive quickly and without delays, and it helps us to protect the quality of our domain

What do you dislike about Postmark?

We have not found anything that we dislike or makes us feel is not worth it. PostMark has a lot of options when it comes to sending transactional emails and email marketing campaigns. Maybe we could have more automation options for managing better our domain health and, thus, not being blocked or marked as spam. Besidesthat, everything works amazing!

What problems is Postmark solving and how is that benefiting you?

We no longer have to suffer headaches or complaints from our customers because their purchase confirmation emails, password change or others do not reach them or arrive with a delay It has helped us so that our domain and emails reach our clients' inboxes correctly. In particular, we use ActiveCampaign Postmark for transactional emails. Now the most important emails for our clients are not lost in spam or the promotions folder

Small Business (50 or fewer emp.)
Dec 18, 2022
 Source
Overall Rating:
5.0
FT
Frecson T.
It Director
Share
"Great email service for developers."
What do you like best about Postmark?

It is really easy to integrate wih other programs and apis. Also, the templates they provide, have made our work easier.

What do you dislike about Postmark?

At this moment we haven't found anything that doesn't like us.

What problems is Postmark solving and how is that benefiting you?

We needed a reliable email system, easy to integrate with other systems through some APIs. Postmark has helped us to achieve just that on an easy and fast way.

Small Business (50 or fewer emp.)
Jul 02, 2022
 Source
Overall Rating:
5.0
VJ B. avatar
Vj B.
Marketing Director
Share
"Most seamless and user friendly solution for mail delivery"
What do you like best about Postmark?

We have been using Postmark to send transactional emails from WordPress websites using Postmark's plugin and it has help fix mail delivery issues for all sites without fail. It is easy to set up and the results are amazing.

What do you dislike about Postmark?

There isn't much to dislike, the pricing is fair we haven't noticed any service outages in last two years of using their services. But the muti-account/agency setup could be handled better.

What problems is Postmark solving and how is that benefiting you?

We're using Postmark to fix email delivery issues from WordPress websites.

Small Business (50 or fewer emp.)
Feb 25, 2022
 Source
Overall Rating:
5.0
HS
Henry S.
Cto
Share
"Fantastic email service that blows away the competition"
What do you like best about Postmark?

Much better than Sendgrid, which had endless deliverability problems even sending to e.g. Hotmail/Live.com addresses. UI is intuitive, use of 'sandbox' accounts is great for checking that your apps are sending messages correctly, and most importantly the actual deliverability is fantastic.

What do you dislike about Postmark?

Literally nothing. Dedicated IPs are only available to a subset of customers, but you don't need one to get good deliverability (unlike with Sendgrid where, with exactly the same emails, we were seeing our IPs flagged for spam).

What problems is Postmark solving and how is that benefiting you?

Sending transactional emails, testing email sending, viewing outbound emails from our system

Mid Market (51-1000 emp.)
Sep 03, 2021
 Source
Overall Rating:
5.0
AG
Verified Reviewer
Founder
Share
"Excellent Email Management Tracker"
What do you like best about Postmark?

We appreciate the ability to quickly and accurately confirm receipt or relay issues to recipients.

What do you dislike about Postmark?

We have seen inconsistent status page updates and prolonged outages with no information to relay to impacted individuals.

What problems is Postmark solving and how is that benefiting you?

Postmark allows us to track automated and manually created emails. We have been users for more than 10 years and do not see a change in vendors in the future.

Small Business (50 or fewer emp.)
Feb 25, 2021
 Source
Overall Rating:
5.0
Ryan L. avatar
Ryan L.
Director Of Engineering
Share
"Great deliverability and speed"
What do you like best about Postmark?

Postmark has the best deliverability I've seen and excellent delivery speed. They have fast support response times and the support staff know what they're talking about. Their DMARC tools are invaluable.

What do you dislike about Postmark?

There isn't much to dislike about postmark. Their per-message pricing is higher for low volumes, but they do have a lower minimum starting price and it scales better than most.

What problems is Postmark solving and how is that benefiting you?

I'm mostly using postmark for transactional registration, email verification, password resets, and notifications. The main benefit has been email delivery speed and actually making it into the inbox.

Small Business (50 or fewer emp.)
Jun 22, 2020
 Source
Overall Rating:
5.0
Michael R. avatar
Michael R.
Owner
Share
"Worth every penny! Fantastic service, extremely reliable, intuitive UI, and lightning fast"
What do you like best about Postmark?

- Wildbit is top notch, and this another of their 10/10 products. - Support is fast, friendly, and helpful - Delivery is super consistent since they handle transactional email primarily; you're treated differently in the inbox vs other providers where you are mixed in with marketing messages - They monitor inbox speed which I've not seen other providers do

What do you dislike about Postmark?

Managing multiple accounts can be a pain. We implement postmark probably once a month for a client, and we need a separate login for each of those. They do have multi user support, but one user can only be associated with one account currently.

What problems is Postmark solving and how is that benefiting you?

Transactional email service

Small Business (50 or fewer emp.)
May 15, 2020
 Source
Overall Rating:
5.0
MR
Mark R.
Software Developer
Share
"Postmark is great for creating templates for easy integration"
What do you like best about Postmark?

We moved our transactional email services from another provider, the ability to create templates with the ease of integration (and generated code for each template) made this an easy move, delivery of emails also increased.

What do you dislike about Postmark?

Postmark was slightly more expensive than our previous provider, but technical support and delivery was improved, so still worth the value.

What problems is Postmark solving and how is that benefiting you?

We wanted to abstract our email templates, Postmark templates solved this well.

Small Business (50 or fewer emp.)
Jan 13, 2017
 Source
Overall Rating:
5.0
AU
Andrew U.
Graphic Designer
Share
"Customer Focused, Email Delivery"
What do you like best about Postmark?

The validation process seems excessive at the start, but once you see the >1% bounce rate, you understand why they do it to keep the IP pools squeaky clean. They have amazing customer service skills, I feel like they are a part of my team.

What do you dislike about Postmark?

I don't have much to dislike at all. The only thing is that I mentioned to one of the reps about the Live Chat not working in the logged in menu, so I have to go to a different page where I know it's working to pull up live chat if I want to use it.

What problems is Postmark solving and how is that benefiting you?

Outgoing email. We switched from another provider to Postmark, and couldn't be more satisfied. They are attentive, quick to respond, and our emails are flowing seamlessly.

Mid Market (51-1000 emp.)
Sep 12, 2016
 Source
Overall Rating:
5.0
AG
Verified Reviewer
Founder
Share
"Reliable platform for transactional email delivery"
What do you like best about Postmark?

Once you set it up, it will work just fine. It really helped us grow our business. We don't need to worry about maintaining and upgrading our email tool - Postmark does it all for us.

What do you dislike about Postmark?

There's nothing we could really complain about. Maybe email open rates could have been higher, but they aren't really responsible for that ;)

What problems is Postmark solving and how is that benefiting you?

We use it for delivery, inbound and tracking email open rates. It works just fine for all of these types of email communication in terms of our product needs.