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SMTP2GO Transactional Email Software logo
SMTP2GO
Worldwide SMTP Delivery — Reliable & Scalable Email Delivery Service & API.
4.7

( 217 )

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SMTP2GO Reviews: 4.7/5 — Highly Rated

SMTP2GO Overview
What is SMTP2GO?

SMTP2GO is a cloud-hosted email delivery platform that provides secure, reliable SMTP relay and RESTful API-based sending for transactional, marketing, and bulk email. The service emphasizes deliverability (DKIM/SPF, sender verification, blacklist monitoring, feedback loops), reporting and analytics (bounces, opens, clicks), global infrastructure with regional data centres (US, EU, AU), subaccount/agency support, and integrations/OSS SDKs for common programming languages.

Company SMTP2GO
Year founded 2006
Company size 11-50 employees
Headquarters Christchurch, Canterbury, New Zealand
SMTP2GO Categories on Findstack
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Ask Questions about SMTP2GO
What SMTP2GO is best for?
How does SMTP2GO compare to SMTP.com?
What are the pros and cons of SMTP2GO?
SMTP2GO Product Details
Capabilities
API
Segment
Small Business
Mid Market
Freelancer
Enterprise
Deployment Cloud / SaaS / Web-Based
Support Chat, Email/Help Desk, FAQs/Forum, Knowledge Base, Phone Support
Training Documentation
Languages English, Persian, Vietnamese
SMTP2GO Pros and Cons
Pros
  • Strong deliverability features (DKIM/SPF, feedback loops, blacklist monitoring, spamtrap detection)
  • Global infrastructure with regional data centres and data-residency options
  • Flexible sending via SMTP relay and RESTful API
  • Open-source SDKs and official plugins (WordPress, cPanel)
  • Generous free tier (1,000 emails/month)
Cons
  • Free plan has strict hourly/daily caps and short reporting retention
  • Limited native marketing automation/campaign management (segmentation, advanced workflows, A/B testing)
  • Add-on costs (extra IPs, archiving, SMS) can increase total spend
  • UI full localization beyond English / plugin locales not clearly verified
SMTP2GO Features
A/B Testing
AI features (content generation, send-time optimization)
Analytics/Reporting
API Integration
API rate limiting / API key permissions
API SDKs (official libraries)
Attachment size limits
Attachments support
Attachment Support
Batch sending (multiple recipients / versions)
Bounce Management
Contact Management
Disclaimer
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: August 30, 2026
SMTP2GO Transactional Email Software logo
217 SMTP2GO Reviews
4.7 out of 5
Mid Market (51-1000 emp.)
Sep 26, 2023
 Source
Overall Rating:
5.0
SP
Suraj P.
Founder
Share
"Reliable SMTP Service with Excellent Email Tracking"
What do you like best about SMTP2GO?

User-friendly, exceptional email tracking and proof of delivery,

What do you dislike about SMTP2GO?

I didn't find anything that I don't like about SMTP2GO

What problems is SMTP2GO solving and how is that benefiting you?

Rating: ⭐⭐⭐⭐⭐ (5/5) As an academic institution, we rely heavily on email communication for various administrative and educational purposes. Over the years, we've tried several SMTP services, but SMTP2GO stands out as the perfect solution for our needs. SMTP2GO offers a seamless and reliable SMTP service that has significantly improved our email delivery rates. We no longer worry about important emails being flagged as spam or not reaching their intended recipients. What sets SMTP2GO apart from other SMTP services is its exceptional email tracking and proof of delivery features. In an academic environment, accountability and evidence of email communication are crucial. SMTP2GO provides detailed delivery reports and real-time tracking, ensuring that we have a record of every email sent. This feature has been invaluable for us when dealing with student communication. SMTP2GO's user-friendly interface makes it easy for both technical and non-technical staff to access and understand email tracking data. This accessibility has improved our transparency and helped us resolve any email-related issues promptly. No complaints about customer support Overall, SMTP2GO is a great product.

Small Business (50 or fewer emp.)
Sep 22, 2023
 Source
Overall Rating:
5.0
Ivo K. avatar
Ivo K.
Solution Architect
Share
"Easy to use and very good support"
What do you like best about SMTP2GO?

As an developer for a plansystem for service companies we are sending 10k e-mails each month. Delivery succes is extremely high. Via the API everything can be configurated. Because of that it's easy the implement in my webapplication. Also the webhook is showing a lot of tracking information. Based on templates it's easy to send bulk e-mail. If you have a question the live chat support is fast. You will get response during the day almost immediatly. One word: Great!

What do you dislike about SMTP2GO?

Easy integration with Plesk. You need to verify senders to send your messages spam free, but it's a lot of work to change all DNS settings for it, if you have a lot of domains as senders.

What problems is SMTP2GO solving and how is that benefiting you?

We other service we had a lot of problems with gmail, hotmail/live addresses. The customers of my client have a lot of users that uses that kind of e-mail addresses. A lot of emails got in to the spambox. Now using SMTP2GO for almost 3 years without any problems of sending emails

Small Business (50 or fewer emp.)
Sep 22, 2023
 Source
Overall Rating:
5.0
AG
Verified Reviewer
Founder
Share
"Simply the best - better than all the rest."
What do you like best about SMTP2GO?

SMTP2GO is a lot better than my singing. My story starts like this - I run a nonprofit matching service that connects Carehome residents with volunteers who wish to send them a small letter or gift for Christmas. There are 100's of Carehomes that are state funded and run but also 100's of private locations. Email interaction with the Carehomes and Volunteers is paramount. Last year I discovered , that the service I was using ( not SMTP2Go at the time ) , had servers that were blocked by the State Carehomes. It was embarrasing , because we had over 1K emails go out to carehomes but none of the state homes received them - and so didnt register with our service. I discovered this in time , and quickly switched to SMTP2GO. The setup is easy ( verifying is a bit tricky if you arent technical , I am. ) and i could see emails pump through the system. In all 24K emails were sent and the bounce rate was very low. The SMTP2GO system told me easily , using the filters , which didnt send. I was able to manually follow up on "bad emails". I dont often write reviews - but these are good guys. I have a Starter 10K account with them now , I use this for various other groups Im responsible for . Their support is quick and easy to access too.

What do you dislike about SMTP2GO?

Verifying your domain is a little tricky if you arent technical . This isnt really a SMTP2GO issue , more of a DNS setup thing.

What problems is SMTP2GO solving and how is that benefiting you?

I need to make sure email is delivered. Simple !

Small Business (50 or fewer emp.)
Sep 21, 2023
 Source
Overall Rating:
5.0
NB
Nick B.
Founder
Share
"Very sensible costs and superbly flexible"
What do you like best about SMTP2GO?

Used by our Exchange Server. Sage 50, Sage Payroll and different spects of our ERP system under diffeent account headings for detailed analysis

What do you dislike about SMTP2GO?

There does not appear to be an option to extend the history so we download the transactions on a monthly basis

What problems is SMTP2GO solving and how is that benefiting you?

It works, causes no problems, is easy to query and halp to track mail

Small Business (50 or fewer emp.)
Sep 21, 2023
 Source
Overall Rating:
5.0
MP
Martyn P.
Founder
Share
"A shining light in the darkness"
What do you like best about SMTP2GO?

When a customer of my website services reported issues with delivery failures on their emails, I had to find a flexible and cost-effective solution quickly. I started looking at the issue with the intention of solving this by cleaning up their email status. When I spoke to a friend in the hosting industry, he recommended SMTP2GO. I quickly scanned their website and signed up on the spot. The whole process was painless and allowed me to provide a reliable service to my customer while being able to use the service myself. I would highly recommend this service as cost-effective and reliable. I am now offering this option to all of my customer base as an upgrade to my web services.

What do you dislike about SMTP2GO?

Hmmm nothing comes to mind, I have never had an issue

What problems is SMTP2GO solving and how is that benefiting you?

Issues with customer email delivery

Small Business (50 or fewer emp.)
Sep 21, 2023
 Source
Overall Rating:
5.0
JB
Jean B.
System Administrator
Share
"SMTP2GO saved our lives multiples times!"
What do you like best about SMTP2GO?

As our company is providing both email accounts and voicemail to email, using a service that we can rely on a daily basis was our priority. We tried other solutions in the past from our own infrastructure to competitors, but the bottom line was that SMTP2GO was able to deliver both our email and voicemail to email 100% of the time. Never had an issue and we are sending 1000's of email per month.

What do you dislike about SMTP2GO?

SMTP2GO a few years back had minor issues with bounce back emails but we were able with the help of support to rapidly find a solution that still work today. As we were using the service to deliver email from a cPanel server, we had to change a few line of code in Exim but the tutorials were very helpful in the end.

What problems is SMTP2GO solving and how is that benefiting you?

We were looking for a solution that could prove that the email was delivered, then if it was read or not so using the portal at SMTP2GO to help our customers validated the delivery of emails.

Small Business (50 or fewer emp.)
Sep 21, 2023
 Source
Overall Rating:
5.0
Eli H. avatar
Eli H.
Founder & Director
Share
"Great product, great support"
What do you like best about SMTP2GO?

The control panel is intuitive and the support is outstanding. Pricing is also good with a very genrous free plan.

What do you dislike about SMTP2GO?

Nothing it; s agreta product does what it says on the tin

What problems is SMTP2GO solving and how is that benefiting you?

It allows me to easily configure multifunction printers to scan to email. Is is also usefu lfor bulk mailing invoices without getting blocked.

Small Business (50 or fewer emp.)
Sep 21, 2023
 Source
Overall Rating:
5.0
TB
Terry B.
Founder
Share
"Reliable, professional service"
What do you like best about SMTP2GO?

I've used SMTP2GO for years now without ever having any problems. They have done a great job at making a dependable service. Wish more companies would do the same.

What do you dislike about SMTP2GO?

Honestly, I can't think of one downside to using SMTP2GO, I've thought hard about this even trying to pick on some small aspect and can't find anything, they're just that good.

What problems is SMTP2GO solving and how is that benefiting you?

I needed a bulk email provider as well as transaction based email provider for my apps on the App Store so that my customers can reach me. We needed to send thousands of emails a month.

Small Business (50 or fewer emp.)
Sep 20, 2023
 Source
Overall Rating:
5.0
SL
Steve L.
Founder
Share
"SMTP2GO bulk emailing service"
What do you like best about SMTP2GO?

The tool provides good status on why emailed failed as well as those which succeeded, it is a very reliable service

What do you dislike about SMTP2GO?

the interface is this very basic, the UI could enjoy a major upgrade

What problems is SMTP2GO solving and how is that benefiting you?

permitting the bulk emailing of statements to members. gives an audit trail of successful mail outs,

Small Business (50 or fewer emp.)
Jul 24, 2023
 Source
Overall Rating:
5.0
DC
Divaldo C.
Team Leader
Share
"Best and simple solution for sending transactional and SMTP emails."
What do you like best about SMTP2GO?

After trying several tools, some very complex and others too expensive, after finding SMTP2GO I found all the features I needed. The free plan is quite decent, the paid one is spectacular, I can connect the SMTP service with any external APP in a simple way, and better, I can separate it by domain or even create subaccounts to better manage each user.

What do you dislike about SMTP2GO?

I still haven't found any reason to submit a review, I've been using the paid service for a few months now and I've connected to about 5 external APPs without any problems.

What problems is SMTP2GO solving and how is that benefiting you?

It makes it possible for emails to be triggered in the applications I have without falling into SPAM, of course I have to have the list checked and ensure that users have the possibility of unsubscribing.