Mailgun (mailgun.com) has a 4.2 out of 5 rating on OK.one, based on 105 user reviews collected here. It is listed under Electronics & Technology and its reputation is good. 79% of reviews are 4 stars or higher and 18% are 1 star; The business has replied to 70% of negative reviews. Last updated 2026-08-10.
This is very great, setup is easy, just generate an API key and install SDK, they have a generous free limit without any catch, customer service is also great.
Thanks Nahid! Great to hear our platform is working out for you. Let us know if you have any issues.
Mailgun is great to work with, I had a couple problems, resolved it with a ticket. The support team got back to me same day. Thank you Mailgun.
You are very welcome! Let us know if there is anything else we can assist you with.
Great service and awesome support. I've been using MailGun/Sinch for 2-3 years and have never had any issues. Their control panel makes it easy to set up and maintain my account.
Hey thank you so much for being a long time customer. Please let us know if you ever do have any issues.
I using and it is verry good, thanks
Thanks so much! Glad you are enjoying our product.
I needed help from Mailgun in setting up an account. But I needed to take further steps in order to verify, authenticate and complete the process of using their services. I was expecting for the whole process to take between 24 to 48hrs. However. It not only took minutes, but the communication between their support professionals (different persons) was outstanding. They were more than professionals. They were very courteous, responsive, professional, patient, and received the best customer service and support you can find. They walked me through everything and made the process extremely easy and fast. Additional. They offer outstanding plans with really affordable pricing. I know there are many similar companies I could've gotten the service I needed. But from the professional experience I had with their service and professionals (support and sales), I don't think I found one that can beat them. I've researched similar companies but I am extremely glad I chose Mailgun. Again. Their customer communication, service, and solutions with various features can't be beat. We've helped many customers fix their issue with their chosen provider for similar services. However. Now we are going to highly recommend Mailgun if anyone asks us to recommend a company. I would like to take this moment to thank the many professionals I communicated with throughout the process (very easy and fast) and help me get the account created and the setup/configuration was extremely easy to implement. Thank you Mailgun team :)
Wow! Incredible review. Thank you so much for taking time out of your day to provide this. We are incredibly grateful. Have a wonderful day!
Service has never gone down and support is always fast and responsive.
Thanks thats great to hear! Hope you have a great day.
This has happened multiple times where there account verification would not send the one time verification code on the mobile during the sign up process. I have had to contact the customer service for such basic processes which should work. How can they be trusted in delivering the emails when they can't fix there internal issue.
Hi there Nishant, thank you for bringing this to our attention. We are aware of the issue and it has been escalated and we are currently working on a solution. Thanks again and have a great week.
pros solved my issue cons why can’t someone change their email in the ui took about 4 back and forth where initial request was misunderstood (LLM triaging?) and then a step was missed on 3rd time, understood and resolved fourth time. can’t really complain but again the premise needing to do the entire flow is questionable. may be a waste of support resources to do something very fundamental (only service i see where changing email for account is not easy - except my own self hosted services hhdhahaha)
Thank you so much for the feedback, we are alway looking for ways to improve the customer experience. Hope you have a great day and thanks again.
I am completely new to Mailgun and how it operates the app is good in guidance but when it came to the using it in production I had issues because of not understanding the sandbox and Allow IP listing but with the help desks support we solved it because there an issue of using sandbox instead of production, the allow IP listing and on my side there was the windows issue of having to use no revoke as well.
So great to hear! Thanks for choosing Sinch Mailgun and have a wonderful week.
Very poor experience. The sign-up process seems simple, but it is impossible to activate the account: I never received the verification code on my phone, which completely blocks access to the service. Despite this, I was charged €3.34 without being able to use the platform at all. The most frustrating part is the total lack of human support: there is no way to get real assistance for what is a basic issue. In the end, the service is unusable, the charge is unjustified, and there is no support. I do not recommend.
Hi there; SInch Mailgun has many plans that include live support. Also, we would be more than happy to refund your charge. If you could send us an email to [email protected] one of our administrators will be more than happy to facilitate this for you. Have a great week!
Thanks Jon! Hope you have a wonderful weekend.
Poor Support! They will constantly cancel your demo sessions. If they are not responding before we are their client, imagine if you get any trouble while using their product.
Hey Anirudh, sorry to hear about this experience. If you could shoot me an email at [email protected] i'd love to get more details around this and see if we can help you out.
We have a major production issue that has now been waiting for a response for 2.5 days. Customers can't send email, can't run their business! I can't delete the affected domain and I can't create an alternate. Absolytely terrible support.
Hi there Glenn, iit look like your current issue is resolved. Going forward; if our platform is mission critical to your business, you may want to look into one of our plans that includes live chat and phone support. Have a great week.
Excellent service! The company was a great support throughout the process, always responsive, professional, and helpful. A pleasure to work with.
Mailgun has been a reliable and efficient solution for managing our email communications. The platform is easy to use, offers great deliverability, and provides excellent support. Highly recommended!”
We have a production issue which we raised yesterday and we still have no response. This is affecting our customers and we have no way of getting hold of them. Issue Logged Request #4071012 Updated 15/04/2026 : The response they mention in there response is an automatic generated response to say that someone will look into it. They only responded due to this review.
Hi there Darryn, We replied to your issue the same morning and the issue is currently in pending status awaiting your response. If our platform is mission critical for your business, you may want to look at one of our more robust plans that include live chat and phone support. Hope this helps, have a great day.
I was very impressed with the response time, communication, and the resolution. Excellent service!
Thanks so much Quinn! Let us know if you ever need anything else.
Nothing to tell - works
Issue was resolved and staff were knowledgeable and I now have comfort that it is resolved forever.
Thanks Malcolm! Glad to hear we were able to help you out. Happy Sending.
Very good service. It offer traditional SMTP and API-based interface. API are simple enough to be used from custom scripting where a local SMTP mailer is not available, Rolling DKIM-keys and a basic DMARC management are very useful plus
Hey Alessandro, so glad our platform is working out well for you. Hope you have a great week!
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