A responsible and professional business and caring support I have nothing but positive experience from Mailgun. I use them for my software gemma.app as the application email relay and I've had the most smooth experience with them from the start. Their support is concise and to the point and always resolved my case. Highly recommended.

They have locked down our sending ability They have locked down one of our domains, claiming leaked smtp credentials (we do not use smtp, so could not have leaked any creds - they provided no further details, nor any logs, nothing, and we have no unauthenticated mail sent via our domain either). There's no local Aussie phone number to call, support does not seem to respond on Australian business hours - so god knows when can we get it unlocked. Go somewhere else if you want reliability. This is an abysmal and un-acceptable way to deal with a paying customer of long years.

MailGun makes deliverability easy MailGun has made it easy for us to manage outbound mail for an assortment of our clients needs. Their support is great when there is an issue they work with us to resolve it and move forward. With the current cyber security and spam landscape its important to have a deliverability partner that we can trust to keep our applications running.

Very good support Very detailed and clear answer from support in order to resolve the issue I got. Great service.

Great customer service, could be docs tho Not used the mail sending part much yet, tho I'm sure it's fine :) Service very good. Quick and clear customer response. Docs could have explained it a bit better and then I'd not have needed to ask them! (Flex plan can be selected if you don't send a lot of email - just get the trial, then unsubscribe from it before it runs out, and switch to flex plan)