sending emails - "Your server announcement looks like a dhcp pool allocation"
We send our emails through a dedicated hosting solution. This means our server calls itself 123-123-123-123.dedserver.net instead of mail.mycompany.com, when smtp'ing to another server.
Usually fine - but emails to one particular domain (*@optus.com.au) fail consistently. They bounce back with the following error. I've emailed firstname.lastname@example.org as instructed but not holding my breath.
Can you advise if this is a problem my end? I wonder if their mail server is trying to do a reverse DNS lookup or something. But we can email other domains without drama.
Hi. This is the qmail-send program at 123-123-123-123.dedsvrs.net.
I'm afraid I wasn't able to deliver your message to the following addresses.
This is a permanent error; I've given up. Sorry it didn't work out.
22.214.171.124 does not like recipient.
Remote host said: 554 5.7.1 <123-123-123-123.dedsvrs.net>: Helo command
rejected: Your server announcement looks like a dhcp pool allocation. Mail email@example.com for more information.
Giving up on 126.96.36.199.