Mandrill sending delays

[BassMan]

You're right. There are only delivered times. Sorry.

 

[Mr Lucky]

You're right. There are only delivered times. Sorry.

Ah, OK. I'm trying to work out whether a notification received 6 hours after the post was delayed by xenforo, mandrill or the recipient domain, mentioned in another pos:

https://xenforo.com/community/threads/timing-of-emails.112708/