[boyanpro]

I can't which one is the best. But we use MailGun and we are not happy with it. We will probably switch to Postmark.

[dgranda]

I use both on free tier and I am happier with PostMark.

I had several issues when sending to Microsoft (hotmail, msn, etc.) domains via MailGun because someone exceeded granted quota for outbound IP address and since then I balance outgoing emails using both.

As mentioned by others, MailGun support doesn't care much about queries from free tier users so I would go for PostMark if I had to pay (more intensive use) or recommend to someone.

[kc10]

I also never faced an issue with MailGun, though I mostly use smtp not their http api.

Is there any specific issue you ran into?

[akhatri_aus]

For us it takes too long for the messages to be received with mailgun.

[davewasthere]

You're noticing a delay between mailgun getting the email and it getting to the client?

I'm using their REST api to send emails, and I've yet to see an email take more than a couple of seconds to get to destination (gmail) while testing.

How long is too long?

[bdibs]

Why aren’t you happy with MailGun? I’m a customer and I haven’t had any issues with it.

[newsbinator]

MailGun's support is horrible. I kept emailing them to let them know about login issues, and it would take them a week to get back to me. After a couple tries, they just dropped the ball and stopped following up on the ticket. Message received.