mustafa
Good and fast support as well as…
Good and fast support as well as powerfull comparing with other providers.

MailerSend is a hassle-free transactional messaging service designed so that developers can integrate transactional email, SMS, and now WhatsApp quickly and effortlessly into their stack. Intuitively designed so anyone can contribute, with a powerful sending infrastructure and flexible payment plans that empower you to scale your sendings quickly. With over a decade of deliverability expertise, and inbuilt email verification, you can rest easy knowing your sender reputation will remain intact. As an official WhatsApp Business API partner, you can also skip the lengthy Meta integration process and start sending WhatsApp messages right from your MailerSend account. Plus, premium features including sender identities, dedicated IPs, and priority support make for an advanced, comprehensive solution.Get started for FREE with 500 emails per month, then upgrade for as little as $7/month for up to 5,000 emails! Want to try more? Get a 14-day free trial of our Professional plan and test-drive every feature it has to offer.
MailerSend, Inc. (mailersend.com) has 228 customer reviews on Five Star Index, with an average rating of 3.9 out of 5.
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Internet & Software · New York, New York
Excellent

Internet & Software · Flushing, New York
Excellent
Internet & Software · brooklyn, New York
Excellent

Internet & Software · Yonker, New York
Excellent
228 approved reviews, newest moderated first
mustafa
Good and fast support as well as powerfull comparing with other providers.
TonyM
They can cancel your account at will without any refund — and the whole point is, you paid for a service you couldn’t even use! This was my first time using this company’s email API. When the test went smoothly, I proceeded to pay for a 100K email subscription plan. On my very first send, after sending only around 1,000 emails, they notified me that my email list had a high bounce rate (around 10%) and suspended my account. Alright, so maybe we can recheck our email list and resubmit? MailerSend: No! Your email bounce rate is too high — your account is being SUSPENDED immediately! Me: Fine, then how about a refund? MailerSend: No, because you violated our policy, there will be no refund! I’m really curious — is this some new business model now? If a customer accidentally violates an alleged policy, you can just suspend their account, not provide any service, and keep the money without issuing a refund? I’m not sure if this is legal, but we reserve all rights to pursue legal action. Well, one good thing did come out of this: thanks to MailerSend’s terrible experience, we found another email service provider that is more than 50% cheaper — and successfully delivered all of our emails. WELL DONE!
Response from MailerSend, Inc.Jun 4, 2025
Hi there, thank you for sharing your feedback. As we shared privately, your account was suspended due to a high bounce rate, which goes against our Terms of Use. We understand how frustrating this can be, especially as a new user. That said, protecting the deliverability and reputation of our platform is something we take very seriously for the benefit of all users. High bounce rates can negatively affect everyone’s ability to reach inboxes, which is why we take immediate action when this happens. If you have any questions or would like to discuss your case further, feel free to reach out to us at [email protected].
flurin S.
Great setup and trustful process. Good implementation tutorials.
Response from MailerSend, Inc.May 20, 2025
Welcome to MailerSend! 🎉 We’re so happy to hear that the setup process went smoothly and that the tutorials were helpful. If you ever need anything else or want to explore new features, we’ve got your back!
Nova C.
Excellent customer support and seamless integration.
slavomir
Possibly great service, but I did not have a chance to experience it; they refused my application. Am I frustrated about this? Not at all; it's their company, and they can work to protect their reputation. Fine, so why did I start it with 1 star? No humanity in customer service, we refuse, and we will not be able to reconsider at this time. That's the answer. When I asked to explain how I can do better, why this is happening, the reason? No proper answer. To be better, I need the reason; otherwise, how can I improve?
Response from MailerSend, Inc.May 20, 2025
Thank you for sharing your feedback. We understand that having your application declined can be frustrating, and we truly appreciate your understanding that we follow strict policies to ensure the best experience for all our users. We genuinely appreciate your interest in our platform, and if you have any questions about how to improve or want to discuss this further, please don’t hesitate to reach out to us directly at [email protected].
The Drop E.
Very quick response and resolution time. Very easy to use platform.
Christer S.
We are a small startup and MailerSend has been very easy to get started with! Perfect that they offer a free Hobby Plan when business is small but has potential to grow. Nice! Also very easy to implement.
Response from MailerSend, Inc.May 2, 2025
Thanks so much for the awesome review Christer! 😊 We’re so glad to hear that MailerSend has been a perfect fit for your startup. We love helping small businesses get started and grow, and we’re excited to be part of your journey. If you need any help along the way, we’ve got your back!
dis C.
Prompt responses, very helpful in sorting out issues and giving directions. I was pleasantly surprised how easy their platform is to use.
Response from MailerSend, Inc.May 2, 2025
So happy to hear you're having a smooth experience with the platform and that everything is working well for you. If you ever need any more help or have more questions down the road, just let us know, we're always here to support you!