SMTP2GO vs Postmark
Which email delivery service is right for you?The same reliable transactional and bulk sending you expect, but with easier setup, clearer reporting, better support, and a free plan that stays free.
'“Excellent overall.”'
Amazing swift support, Innovative service. Must be rated top 1 not 2. I was on Postmark before, but they don't respond.
'“Really great platform.”'
Having used Postmark, we constantly got customers saying they don't get our emails. Now we do and we can see emails going out daily.
'“Wish I'd found this sooner...”'
Transactional emails sent from websites - often a minefield of problems, but by using SMTP2GO it takes all the stress out of it. This saves me so much time.
'“Rock-solid reliability.”'
Excellent service. SMTP2GO makes email delivery effortless, and their customer support is hands down some of the best in the industry.
'“What a great experience.”'
Signup and setup was easy and fast. SMTP2GO has a nice clear dashboard with all the enterprise level features you need. Support was fast and friendly.
Compared to Postmark, SMTP2GO gives you more free sending, broader sending flexibility, stronger value for money, and higher ratings across major review platforms.
| SMTP2GO | Postmark | |
|---|---|---|
| 1. Free plan | 1,000 emails/month | 100 emails/month |
| 2. Flexibility | Multi-purpose email platform | Transactional emails only |
| 3. Customer service | 4.8 | 4.6 |
| 4. Value for money | 4.7 | 4.7 |
| 5. Reputation | 4.9 4.7 4.8 | 4.7 4.6 2.2 |
A 10X bigger free plan
Postmark’s free plan gives you 100 emails per month.
SMTP2GO’s free plan gives you 1,000.
Postmark’s free plan is useful for testing integrations with them, or for running small side projects. That’s what it was made for.
SMTP2GO’s free plan gives you ten times the monthly sending volume on its free plan, so you have more headroom to set things up properly, run low-volume business email, and keep sending without upgrading until you’re ready.
Beyond transactional mail
Postmark does transactional emails.
SMTP2GO does all of your emails.
Postmark can be a strong choice when you only need reliable deliverability for developer-led transactional emails.
SMTP2GO is built for businesses, agencies, developers, and IT teams that need reliable sending across more everyday use cases. We cover your app notifications and password resets to website forms, client systems, bulk sending, SMTP relay, SMS messaging, subaccounts, and more.
More ways to get support
Postmark supports you with their ticketing system.
SMTP2GO supports you however you want support.
Email problems are easier to solve when support is easy to reach.
Postmark provides ticket-based support, which may be enough for many developer teams.
SMTP2GO is built around more accessible human support, with chat and phone support in addition to ticketing, so you can get hands-on setup assistance and troubleshooting in a way that suits you.
Better value for money
Many of our plans are simply cheaper.
Postmark’s pricing is competitive for transactional email teams focused on transactional email workflows.
Teams that need straightforward SMTP and API sending, reporting, support, and practical business email delivery often find SMTP2GO plans provide a lower-cost path to getting all of those needs taken care of.
A stronger reputation
SMTP2GO ranks higher on major review platforms.
Email delivery is an essential business function, and too important to gamble on. SMTP2GO receives stronger ratings than Postmark across review platforms, with users repeatedly highlighting reliability, support, deliverability, and ease of use.
That makes SMTP2GO a great choice for teams that value the safety of endorsements from real users using the platform day-to-day for years.
Ratings checked June 8, 2026.
Ready for simple, great value email delivery?
Start sending emails with a platform that's easy to set up, backed by responsive support, and trusted by businesses around the world.
Frequently asked questions
- What is the difference between a free account and a paid account?
Free accounts come with a monthly allowance of 1,000 emails and a limit of 200 emails per day. There is an hourly limit of 25 emails (the hourly limit is removed when you verify your sender domain). Free accounts are limited to 5 days of email reporting, and 2 weeks of phone and live chat support. Paid accounts have no hourly limit and your monthly allowance is based on the plan you choose.
- Why would we need SMTP2GO?
Every person, and every business, needs a reliable outgoing email service for sending emails. SMTP services offered by webhosts and ISPs are being discontinued, or greatly restricted. They don't want to run them in the first place, and put the minimum possible amount of resources into their maintenance. When things go bad, you'll likely be left high and dry, trying to get answers from support staff reading from scripts.
Aside from low quality webhost/ISP services, you theoretically could run your own email servers. However, bear in mind that email delivery is a complex, specialized, and constantly evolving field that really does take years of experience and hours of time every week.
- OK, how do I actually send emails?
Setting up SMTP2GO simply involves entering our SMTP server details into the settings of your email software (e.g. Outlook), or your code. To make it easier, we've provided setup instructions for most email programs and scripting languages. Click here to view our setup guide.
- Is there an API I can use to send emails with?
Of course! Our API enables you to integrate SMTP2GO with your email systems. Using the API, you can send emails, retrieve details of previously sent emails, and even manage various features of your account like Sender Domains, SMTP Users, sub-accounts, suppressed email addresses and domains, and retrieve statistical reports. Detailed documentation on how to use the API is available.
You'll also have access to our Webhooks. Webhooks are an advanced feature that can notify your web services whenever an event happens in your SMTP2GO account. You can use these events to track what happens to the emails you send. Learn more about webhooks with SMTP2GO.
- Will SMTP2GO work even if port 25 is blocked?
Yes – SMTP2GO is open on different SMTP ports (25, 80, 587, 2525, 8025). We recommend using port 2525, which is open from most locations. Try a different port number if port 2525 is blocked at your location.
TLS is available on the same ports, and SSL is available on ports 465 and 8465.