Mailer To Go vs SMTP2GO (2026): which should you pick?
As of Nov 13, 2026, SMTP2GO grades higher than Mailer To Go: 2.2 against 1.8 out of 4.0.
Checked Oct 18, 2026 and Nov 13, 2026 · graded Oct 18, 2026 and Nov 13, 2026 by ToolGPA
SMTP2GO grades higher on the free plan. They get the same grade on value for money, features, ease of use and platforms.
Price, platforms and features side by side. The table says where each price was read and when.
Mailer To Go
Managed SMTP sending for developers and Heroku apps
SMTP2GO
SMTP relay and email API priced by emails a month, with a free plan
Which one is for you
Pick Mailer To Go if
- Fits if you run an app on Heroku and want SMTP email
- Works for developers who are fine with SMTP and no REST API yet
Look elsewhere if
- Not for you if you want a free plan, as there isn't one
- Skip it if you need a REST API, which is still in development
- Tight if you add a dedicated IP, which is $30 a month on Growth and Scale
- Watch out: plans bought through Heroku, Addons.io or Build.io are billed and priced separately
Pick SMTP2GO if
- Fits if your office printers, scanners or old systems need somewhere to send mail from
- Works for people who look after email for several clients and want subaccounts on a paid plan
Look elsewhere if
- Not for you if your app needs to receive and read incoming email
- Tight if you're staying free, at 1,000 emails a month and 200 a day, with no way to buy more
- Skip it if you only have a Gmail or Yahoo address to sign up with
- Pricey if you need a dedicated IP or email testing, which start with Professional at $75 a month
- Watch out: the free plan keeps 5 days of reports, and chat and phone help stop after 14 days
How we grade them
| 1.8GPAMailer To GoWeak | 2.2GPASMTP2GOFair | |
|---|---|---|
| Value for money | CStarter is $15 a month for 25,000 emails, the middle of this category's prices. Extra email is $1.00 per 1,000, and a dedicated IP is $30 a month. | CGraded on 50,000 emails a month: Starter is $30 a month at that volume, with two months free if you pay yearly. That sits in the middle of what this category charges for that much sending. A dedicated IP and email testing need Professional at $75. |
| Free plan and trial | FNothing free: there is no free plan or trial, so every plan is paid from day one. | CFree for good with no card: 1,000 emails a month, but only 200 a day, with 5 days of reports, and extra emails can't be bought. Chat and phone help last 14 days. Enough for a test, tight for a live app. |
| Features | CSMTP sending, delegated DNS, suppression handling, delivery webhooks and inbound routing. The REST API is still in development, so sending today is SMTP only. | CAPI and SMTP sending, automatic SPF and DKIM, delivery reports with bounce alerts, blacklist monitoring, three data regions and subaccounts. It does the sending job fully, but that's a smaller job: nothing on record covers receiving email or templates. |
| Ease of use | CNo store rating on record. It takes sending domains and DNS to set up, but it is a plain SMTP service. | CJudged on how fast a developer sends a first email: copy the SMTP details or use the API, with code examples in five languages, once your domain is added. No rating on record. Sign-up refuses Gmail and Yahoo addresses, so you need a work domain. |
| Platforms and integrations | BWeb, SMTP, and Heroku, Addons.io and Build.io add-ons, plus Rails, Django, Laravel and Nodemailer guides. No apps. | BWeb, with an SMTP relay and REST API that work from apps, servers and devices, plus WordPress, Google Workspace, Salesforce, Zoho CRM, Pipedrive, WHMCS, Laravel and Django. No desktop or phone app, so B is the top. |
| Best for | SMTP sending for developers on Heroku or anywhere | relaying email from apps, sites and office printers |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: Mailer To Go and SMTP2GO. How we grade
Price against what you get
Mailer To Go starts at $15 a month and scores 2.3 out of 4 on features, ease of use and platforms. SMTP2GO starts at $15 a month and scores 2.3.
On this chart the two sit in the same place: the same score for the same starting price. Of the other email sending services on the chart, 7 score higher than Mailer To Go for less, and 7 score higher than SMTP2GO for less.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Where they differ
At a glance
| Mailer To Go | SMTP2GO | |
|---|---|---|
| Pricing | Paid | Free plan |
| Starts at | $15 per month for 25,000 emails | $15 per month for 10,000 emails, billed monthly |
| Free plan | None | 1,000 emails a month, limited to 200 a day, with 5 days of email reporting and ticket support. Extra emails are not allowed. No credit card needed. |
| Free trial | None listed | None listed |
| Web | ||
| Made by | Sidebored.io, Inc. | SMTP2GO |
| Price read from | mailertogo.com | smtp2go.com |
| Checked | Nov 13, 2026 | Oct 18, 2026 |
Worth knowing
Mailer To Go
- There is no free plan; every plan is paid.
- The pages say a REST API is in development, so sending today is over SMTP.
- A dedicated IP is a $30 per month add-on on Growth and Scale, on request.
- Plans bought through Heroku, Addons.io or Build.io are billed there and priced separately from the direct plans.
SMTP2GO
- The free plan stops at 1,000 emails a month and 200 a day, and extra emails cannot be bought on it.
- A dedicated IP address and email testing tools start with Professional at $75 a month.
- Email reports are kept for 30 days on paid plans and 5 days on the free plan.
- Sign-up asks for an email address at a private domain; Gmail and Yahoo addresses are refused.
Key features
Mailer To Go
- SMTP sending
- Standard SMTP on port 587 (STARTTLS) or 465 (SSL), so framework mailers work by pointing them at the dashboard credentials.
- Delegated DNS
- Publish one NS record and the service publishes and rotates SPF, DKIM and DMARC records for a dedicated sending subdomain.
- Suppression handling
- Hard bounces and spam complaints are added to a suppression list automatically.
- Delivery webhooks
- Webhook URLs receive delivered, bounced, opened and clicked events.
- Inbound routing
- Inbound mail can be forwarded by rule or delivered to an app as a webhook.
- Marketplace add-ons
- Available as an add-on on Heroku, Addons.io and Build.io, which sets SMTP credentials as config variables.
SMTP2GO
- SMTP relay and HTTP API
- Send through SMTP from an app, a mail client, a server or a device, or through a REST API with code examples in JavaScript, Node.js, PHP, Ruby and Python.
- Delivery tracking and reports
- Real-time reports follow each email to delivery and show bounces, spam complaints and unsubscribes, with weekly summaries and alerts on sudden bounce rises.
- Automatic SPF and DKIM
- Domain authentication is handled for you, along with feedback loops, blacklist monitoring and spam trap detection on every plan.
- Data centers in three regions
- Choose to send from and store data in the US, Europe or Australia, with best-path routing to the nearest location.
- Email testing
- Professional adds previews in more than 40 email clients and checks against major spam filters before you send.
- Subaccounts
- Paid plans can split sending into subaccounts, which suits agencies and managed service providers looking after several clients.
Plans
Mailer To Go
Starter$15
per month for up to 25,000 emails, billed monthly
5 sending domains, 30 days of event history, email support. Extra email is $1.00 per 1,000.
Growth$50
per month for up to 250,000 emails, billed monthly
25 sending domains, 90 days of event history, priority support. Extra email is $0.60 per 1,000.
Scale$150
per month for up to 1,000,000 emails, billed monthly
Unlimited sending domains, 12 months of event history, priority support. Extra email is $0.40 per 1,000.
SMTP2GO
Free Plan$0
1,000 emails a month and 200 a day, 5 days of reports, ticket support; chat and phone support for the first 14 days only.
Starter$15
per month for 10,000 emails, billed monthly
30 days of reports, ticket, chat and phone support, subaccounts and SMS. Extra emails $1.20 per 1,000. Price rises with volume: $30 a month at 50,000 emails.
Professional$75
per month for 100,000 emails, billed monthly
Adds a dedicated IP address and email testing tools. Extra emails cost $0.85 per 1,000, and the price rises with volume.
PremierCustom
Over 3 million emails a month, with personalized setup and support.
Ways to pay less
Mailer To Go
- Annual discount
20% off with annual billing
The plans page says annual billing saves 20% on the direct plans.
SMTP2GO
- Annual discount
Two months free with yearly billing
Paying yearly gives two months free: Starter at 10,000 emails is $150 a year instead of $180, and Professional at 100,000 is $750 instead of $900.
- Education
30% education discount
SMTP2GO's education page offers schools a 30% discount, with unlimited users and systems on one account.
Common questions
Which is cheaper, Mailer To Go or SMTP2GO?
As of Nov 13, 2026, they start at the same price. Mailer To Go starts at $15 per month for 25,000 emails, and SMTP2GO starts at $15 per month for 10,000 emails, billed monthly.
Which has a free plan, Mailer To Go or SMTP2GO?
As of Nov 13, 2026, only SMTP2GO has a free plan. Mailer To Go does not.
More comparisons
How this page was made
- The verdict at the top follows a fixed rule. When both tools are in the same category and either is in our top three for it, the verdict follows that ranking: the higher-placed tool is our pick. The top three weigh who each tool suits as well as its grades, so a pick can go against the GPA. Otherwise the page does not pick one and says which grades higher: the higher GPA first; on a tie, the one with a free plan, then the one that starts cheaper in dollars a month, counted the same way for both; if they are still level, what the choice depends on.
- The grades are our own, from each tool’s review or report card. The GPA is their average.
- Prices, plans and platforms come from each tool’s listing. The table above says where each price was read and when.
- The differences and the answers to the questions are worked out from those listings.