A user recently got an email from DH that said:
firstname.lastname@example.org: host AIL.pipinc.com[220.127.116.11] said: 557 Your IP address is from a blacklisted country. Disconnecting.. (in reply to end of DATA command)
Has anyone seen this? What can be done?
I checked a couple of blacklist sites but the DH mailservers 18.104.22.168/1 were not listed.