send emails via mail.filmhamster.com.
Recently I have been getting replies bounce back to me from, as far as I can tell, just one domain. I haven't made any changes and used to email them with no problems.
I'm trying to figure out if the problem is on my end or theirs.
Edited by Queen-Evie, 23 July 2015 - 02:27 PM.
deleted headers because email addresses were included to protect from spam bots