This may sound rather vague, so I do apologise. I have my "own" email server, which runs my own domain and seems to work absolutely fine the vast majority of the time. I have a problem at the moment, specifically with Epic Games - who are claiming that they are sending me password reset emails - but I am never receiving them. The email address is obviously working - because their support staff are emailing me (which is frustrating as whatever system sends the password resets clearly ISN'T working properly.
However, I do run the server from home and uses dynamic DNS (I have no choice with my ISP). I SUSPECT that some outbound mail servers may be doing some kind of check (possibly a reverse DNS lookup - and of course my IP address resolves back to my ISP hostname and not "my" domain as shown below: byteplayer:~=> host 5.68.116.33 33.116.68.5.in-addr.arpa domain name pointer 05447421.skybroadband.com. byteplayer:~=> host byteplayer.com byteplayer.com is an alias for byteplayer.dyndns.org. byteplayer.dyndns.org has address 5.68.116.33 byteplayer.dyndns.org has IPv6 address 2a02:c7f:642c:6600::1 byteplayer:~=> Is there some check I can ask them to investigate? I know I have had very rare instances where when I try to sign up to a website it says my email address is invalid (when clearly it's not) and again I suspect some kind of reverse DNS check has triggered a "false" error. I suspect the email issue is similar, but am not at all sure where to go with this! Suggestions gratefully received. thanks Mark -- Sent from: http://postfix.1071664.n5.nabble.com/Postfix-Users-f2.html
