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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: October 25, 2026
SMTP2GO Transactional Email Software logo
217 SMTP2GO Reviews
4.7 out of 5
Small Business (50 or fewer emp.)
Nov 17, 2020
 Source
Overall Rating:
4.5
Kelly W. avatar
Kelly W.
Network Operations Center Manager
Share
"SMTP2GO- Make Relay Easy!"
What do you like best about SMTP2GO?

It is feature rich but easy to use. User authentication, IP whitelisting, rate limits are all available and easy to use. As a MSP it makes easing client issues... well, quite easy! No need to create exchange based relays for printers, use SMTP2GO. One of the most underrated features is the auditing capability, it gets quite granular.

What do you dislike about SMTP2GO?

I supposed pricing in the mid-range of usage could get a bit pricey but I'll be honest, it is pretty difficult to pick out a real negative here and for me to not have a negative take on software is very rare.

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

Limiting the exposure to mail relays by using simple to implement and highly effective relays with SMTP2GO. No more mistake by techs allowing the "bad guys" access or exposing critical infrastructure by accident. Auditing for us as an MSP is very critical, there are situation where we need to validate deliverability, using an ISP as a relay for a printer makes auditing impossible, SMTP2GP makes this easy.

Small Business (50 or fewer emp.)
Nov 10, 2020
 Source
Overall Rating:
4.5
KM
Kimberly M.
Founder
Share
"Exceptional Delivery"
What do you like best about SMTP2GO?

SMTP2GO has been seamlessly sending my clients emails for months. We tend to have issues with our servers sending emails so I use this as a platform to ensure all emails are sent. I also like that large companies use this software as if helps build credibility for myself and the clients. The software is also fairly affordable. I also like the API function, I have not used it in a custom software yet, however is something I would like to consider in the future.

What do you dislike about SMTP2GO?

Sometimes the verificaiton process with the Domain names TXT records don't work and I have to delete and re-enter the domain name.

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

As a web designer I need to make sure my clients contact forms are sending correctly. Often the server will not send the email, or it will end up in the clients spam folder when someone tries to send them an email. By using SMTP2GO emails are always sent and delivered to the clients inbox. The reporting system is also really good, I am able to see bounce rates of emails sent, of which my servers do not show me.

Small Business (50 or fewer emp.)
Sep 30, 2020
 Source
Overall Rating:
4.5
AG
Verified Reviewer
Founder
Share
"SMTP2GO Review"
What do you like best about SMTP2GO?

Not provided

What do you dislike about SMTP2GO?

Not provided

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

Not provided

Enterprise (> 1000 emp.)
Sep 23, 2020
 Source
Overall Rating:
4.5
Ihab M. avatar
Ihab M.
It Infrastructure Head
Share
"An efficient and powerful Email delivery service"
What do you like best about SMTP2GO?

Fast delivery, high delivery rate due to their positive reputation, detailed reports that allow you to trace any submitted email at anytime. bounce reports are super important, it helped us find many security breaches on our email system for the past 4 years. customer service are very helpful, we never had a problem with them so far.

What do you dislike about SMTP2GO?

Technical support staff are a bit tough when you have high rate of SPAM, they immediately block your account without notice . Of course they do this to protect their servers reputation but it is a bit aggressive.

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

Our ISP was providing the worst IP addresses (In terms of SPAM reputation), we had many failures and bounced emails. we couldn't rely on our ISP to send our emails before. moving our business to SMTP2GO was the best idea to overcome this problem, it didn't only help our email delivery but it also increased our Email server's reputation.

Mid Market (51-1000 emp.)
Sep 18, 2020
 Source
Overall Rating:
4.5
AG
Verified Reviewer
Founder
Share
"i never faced any issue while working on it"
What do you like best about SMTP2GO?

ability to overpass limit, and the report received about rejected emails

What do you dislike about SMTP2GO?

i dislike not having enough reports and not having templates to use to send my newsletters

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

sending emails through API without being set as spam

Small Business (50 or fewer emp.)
Sep 17, 2020
 Source
Overall Rating:
4.5
AG
Verified Reviewer
Founder
Share
"Used SMTP2GO for over a year"
What do you like best about SMTP2GO?

It works well I have not experienced any problems

What do you dislike about SMTP2GO?

There is nothing to dislike it works well

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

Using it we get less non-deliveries and are not treated as spam

Small Business (50 or fewer emp.)
Sep 17, 2020
 Source
Overall Rating:
4.5
Desiree-Anne M. avatar
Desiree Anne M.
Addictions, General Counsellor And Group Facilitator
Share
"A must-have product!"
What do you like best about SMTP2GO?

It allows my email to always work without having to change settings no matter what connection I’m using.

What do you dislike about SMTP2GO?

There is nothing I dislike about the product or service.

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

Connectivity issues have been resolved seamlessly.

Small Business (50 or fewer emp.)
Jul 29, 2020
 Source
Overall Rating:
4.5
JH
Joshua H.
Founder
Share
"Great service - would recommend."
What do you like best about SMTP2GO?

Reliable service and great staff support. I love being able to view click/open rate via the analytics sections.

What do you dislike about SMTP2GO?

The dashboard is a little clunky - could do with an update.

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

We use STMP2GO to send a variety of emails to range of different clients and contacts. The email tracking feature allows us to know when to chase for a response. A great tool, and reliable service.

Small Business (50 or fewer emp.)
Dec 23, 2019
 Source
Overall Rating:
4.5
AG
Verified Reviewer
Founder
Share
"Very Good Service"
What do you like best about SMTP2GO?

Fast Response, Easy Manage Control panel

What do you dislike about SMTP2GO?

in total it is goo, but you need to set email sending limit by default

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

control mail traffic

Small Business (50 or fewer emp.)
Dec 19, 2019
 Source
Overall Rating:
4.5
FB
Francois B.
Founder
Share
"smtp provider with good reputation"
What do you like best about SMTP2GO?

Emails sent throught Smtp2go are received everywhere.

What do you dislike about SMTP2GO?

Can't register account for clients from the Office (ip)

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

Easy to configure on customers Outlook and other clients.

Small Business (50 or fewer emp.)
Dec 19, 2019
 Source
Overall Rating:
4.5
DC
Damian C.
Founder
Share
"SMTP2GO has solved our email sending issues"
What do you like best about SMTP2GO?

Our several hundred users need to be able to reliably send 10000s of emails per month from our product. Prior to using SMTP2GO we had ongoing issues with both speed of delivery and reliability. SMTP2GO has given us easy to use tools to properly set up properly with DNS records etc so that now we have close to 100% reliability and has allowed us to offer a completely seamless email feature for our customers.

What do you dislike about SMTP2GO?

It took a while to fully understand the correct way to set up Sender Domains etc, but once we got our heads around how it was easy enough.

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

Our application is normally installed on customer sites and our customers need to send email to their customers and suppliers faultlessly. Prior to SMTP2GO we had endless headaches because too many emails were going to spam, bouncing, or being lost completely. SMTP2GO has been both excellent value and near 100% reliable.

Enterprise (> 1000 emp.)
Dec 19, 2019
 Source
Overall Rating:
4.5
Umang S. avatar
Umang S.
Software Engineer
Share
"Affordable and Reliable"
What do you like best about SMTP2GO?

This application really does what it is made for, offers email tracking feature which much needed for the business to run smoothly. They have good no. of They do have good costumer service and support which will resolve your queries in time . You won't any difficulty in settings and configuration as they can be easily managed from dashboard section, in other software you really a lot issues As they have many server you will always be running your business smoothly and they are system independent. Hence they are powerful.

What do you dislike about SMTP2GO?

All of a sudden sometimes quite large no of bounce back is experienced, and alerting sometimes fails to show up any notification. Spam detection feature needs to be worked on, as they sometime won't detect what is called spam.

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

We generally solve our booking, cancellation and amendment related problems. they help us in acknowledging the costumer about their transactions made on our site. They are updated about the recent offers and sale going on our site through this application.

Enterprise (> 1000 emp.)
Dec 16, 2019
 Source
Overall Rating:
4.5
AS
Ankit S.
Software Engineer
Share
"It great expirence using SMTP2Go, things works smoothly"
What do you like best about SMTP2GO?

Its very convenient and simple to use every time

What do you dislike about SMTP2GO?

Dashboard can be made little more fluid and interactive

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

Helped in generating client mails

Mid Market (51-1000 emp.)
Dec 13, 2019
 Source
Overall Rating:
4.5
AG
Verified Reviewer
Founder
Share
"Good service"
What do you like best about SMTP2GO?

Easy website for settings with clear graphics.

What do you dislike about SMTP2GO?

The limit for sending email could have been a bit higher for the cheapest subscriptions.

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

I use it to send email from different locations by HVAC controllers.

Small Business (50 or fewer emp.)
Dec 12, 2019
 Source
Overall Rating:
4.5
Howard C. avatar
Howard C.
Owner
Share
"Good Value and it Works"
What do you like best about SMTP2GO?

Simplicity of set up and it just works.....

What do you dislike about SMTP2GO?

Nothing at all even the cost is good............

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

Our main challenge was to send alerts from legacy software products, other email systems now need TLS.

Small Business (50 or fewer emp.)
Dec 12, 2019
 Source
Overall Rating:
4.5
AG
Verified Reviewer
Founder
Share
"It gives a good control over our email sending with reports to indicate where emails are bouncing."
What do you like best about SMTP2GO?

Being able to see which emails are bounced and what are all the emails send.

What do you dislike about SMTP2GO?

The fact that we're nog able to give limited access for some users to reports. For example to reports only from a certain email address.

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

Consistent delivery of our web application emails.

Mid Market (51-1000 emp.)
Dec 12, 2019
 Source
Overall Rating:
4.5
AG
Verified Reviewer
Founder
Share
"SMTP2GO Overcomes Exchange Online's Mail Rate Limit"
What do you like best about SMTP2GO?

Speed and efficiency, ease of set-up and configuration in a range of implementations; as a connector for SQL Database Mail, in connected hardware devices.

What do you dislike about SMTP2GO?

There's very little I don't like, the only minor thing is the gap in subscription plans between 20,000 per month and 100,000 per month

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

We send out several thousand emails a day to our customers advising them of operational and commercial issues. As an Office 365 business, SMTP2GO enabled us to overcome the mail sending limits imposed by Exchange Online.

Mid Market (51-1000 emp.)
Dec 12, 2019
 Source
Overall Rating:
4.5
AG
Verified Reviewer
Founder
Share
"Setup and forget"
What do you like best about SMTP2GO?

Seamless, easy to use. Setup and forger. I only remember i have a smtp service when they send me the notice for renewal.

What do you dislike about SMTP2GO?

Have been using them for 5 years and all is good.

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

I'm using smtp2go for sending email from my copier machine.

Mid Market (51-1000 emp.)
Nov 05, 2019
 Source
Overall Rating:
4.5
AG
Verified Reviewer
Founder
Share
"Long Term user, had great usage & support"
What do you like best about SMTP2GO?

We were pro-actively helped when hackers managed to use our account to send spam. The site has been 100% reliable in our experience.

What do you dislike about SMTP2GO?

Overseas based and our servers are in Australia

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

Simple way of sending email from various platforms.

Small Business (50 or fewer emp.)
Aug 28, 2019
 Source
Overall Rating:
4.5
TM
Tim M.
Owner/Operator
Share
"Simple and effective."
What do you like best about SMTP2GO?

SMTP2GO has a simple straightforward approach to email deliverability. Set up is easy and fast and flexible enough to handle differing combinations of domain implementation and server complexity.

What do you dislike about SMTP2GO?

To be honest I haven't found a downside as yet.

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

We had tried a number of solutions fr both transactional and information email delivery but consistently had issues. These have largely disappeared since using the service. It has also meant that even simple email accounts can avoid undelivered emails due to larger telcos using broad spam policies that mostly seem affect legitimate email.

Small Business (50 or fewer emp.)
Aug 28, 2019
 Source
Overall Rating:
4.5
AG
Verified Reviewer
Founder
Share
"Good reliable system for automated email alerts"
What do you like best about SMTP2GO?

Multiple port numbers and transport options

What do you dislike about SMTP2GO?

Nothing, product meets my needs and I can't think of anything else

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

Great for automated email alerts from Chicken Farms

Small Business (50 or fewer emp.)
Apr 11, 2019
 Source
Overall Rating:
4.5
AG
Verified Reviewer
Founder
Share
"Very quick Customer Support"
What do you like best about SMTP2GO?

Customer Support is amazingly quick and responsive for a free service.

What do you dislike about SMTP2GO?

Their FAQ could be more clear about this issue which could happen frequently.

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

Free Email Forwarding. It allows me to send professional business email from gmail for free.

Small Business (50 or fewer emp.)
Jul 22, 2018
 Source
Overall Rating:
4.5
RM
Regina M.
Managing Director
Share
"SMTP2GO strengthening my email "
What do you like best about SMTP2GO?

I like the fact that I know with SMTP2GO I don't have to worry about whether my email is received by my clients, this is particularly important as once I send an email I know it will be received, if not SMTP2GO will send notify me of an error. I like the peace of mind it gives me.

What do you dislike about SMTP2GO?

Sometimes I have issues with SMTP2GO satisfying my Microsoft Outlook (on my desktop) security and at times I've had to reload my email to satisfy SMTP2GO requirements. This takes valuable time.

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

It provides me with secure email, if there is a problem I am notified.

Small Business (50 or fewer emp.)
Jul 19, 2018
 Source
Overall Rating:
4.5
AG
Verified Reviewer
Founder
Share
"Delivers good service as promised"
What do you like best about SMTP2GO?

They easy to use website, that gives me the info I need.

What do you dislike about SMTP2GO?

No complaints so far. I usually use it every other day an have not run into issues.

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

We're an online retailer. We used SMTP2GO as a relay that allows out site to email purchase orders, customer receipts, and other notifications.

Mid Market (51-1000 emp.)
Jul 16, 2018
 Source
Overall Rating:
4.5
AG
Verified Reviewer
Founder
Share
"It just works!"
What do you like best about SMTP2GO?

Great support, pro-active isolation where needed for where end users get their system compromised, and reasonable rates

What do you dislike about SMTP2GO?

they have a pre-determined tier structure for prices - just pay on a sliding scale would be preferred

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

keeping bounces and 'spam' reports well under control

Small Business (50 or fewer emp.)
Jul 13, 2018
 Source
Overall Rating:
4.5
RP
Roshan P.
Founder
Share
"WE are using it and it works"
What do you like best about SMTP2GO?

It is working. WE use to send out our email.

What do you dislike about SMTP2GO?

setup it was little harder. After setup this okay

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

we used to send email from our server, it used to go to spam folder, now we have better result

Enterprise (> 1000 emp.)
Jul 09, 2018
 Source
Overall Rating:
4.5
AG
Verified Reviewer
Founder
Share
"SMTP2GO REview"
What do you like best about SMTP2GO?

Easy of use, stability, ability to create multiple users

What do you dislike about SMTP2GO?

Nothing. Set it and forget it, makes it easy

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

External mail relay via multi function devices, SMS from business app, mail relay form business app

Mid Market (51-1000 emp.)
Jun 27, 2018
 Source
Overall Rating:
4.5
James V. avatar
James V.
Cio
Share
"SMTP2GO"
What do you like best about SMTP2GO?

pretty simple solution for a problem we had for relaying email

What do you dislike about SMTP2GO?

It is a pretty simple platform. there are no dislikes

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

using it as smtp relay for some internal communication of scanners, CRM, and ERP.

Small Business (50 or fewer emp.)
Jun 27, 2018
 Source
Overall Rating:
4.5
FS
Federico S.
Founder
Share
"The right choose for SMTP problem"
What do you like best about SMTP2GO?

I love the easy configuration and the intuitive console. I am able to manage things in an easy way without incurring in any problem.

What do you dislike about SMTP2GO?

I didn't find nothing that I dislike for the moment. It's the best solution I tried.

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

I am able to send newsletter and collective mails in an easy way without any problem of spam. Users are able to send e-mail without worries about their notification. I also think that price is in the right range for our business. I tried many solutions before but SMTP2GO is the best I found.

Mid Market (51-1000 emp.)
Dec 30, 2017
 Source
Overall Rating:
4.5
AG
Verified Reviewer
Founder
Share
"An easy, simple and efficient service to use"
What do you like best about SMTP2GO?

I feel calm because the service always works correctly. The service is designed so that the user can use it in a self-managed way, without having to seek support online.

What do you dislike about SMTP2GO?

No doubt the service can be much more efficient, I think opening a channel with videos on how to improve the service would help a lot for users like me who are not technical experts but responsible because the service works more. In summary, I think that the part of doubts and queries can be improved.

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

For the purpose of our business it is important to send emails without falling into black lists presuming that it is spam mail, and for this SMTP2Go helps us by ensuring our customers that their emails will reach their destination without incident.