I am having a new problem where mail bound for optus is being sent back as their mail server doesnt like the fact that an IP is in our HELO message.Fair enough I say, I thought it was set to display the host/domain name anyway.
I had a look at the server document and in the basic tab it was set to domain.com.au. I changed it to mail.domain.com.au and restarted the server. No good.
Checked the ini file etc.
I dont know where its putting the ip address in from?
Message follows:
Error transferring to smtp2.OPTUS.COM.AU; SMTP Protocol Returned a Permanent Error 554 5.7.1 <[202.x.x.x]>: Helo command rejected: Your server anouncement looks like a dhcp pool allocation. Mail postmaster@optus.com.au for more information.
Are you sure that is the problem? It sounds like you have configured everything correctly, so could it be that the receiving end just doesn’t accept messages from a DHCP allocated ip address?
Is your external IP address allocated from DHCP? This is more likely to be the problem, than your server’s configuration.
The use of different IP addresses is not static, and they might be using a blacklist that thinks your IP address is a dynamic one. It could even be that your ISP (if they own the IP address) has it marked as dynamic one.
If you send a mail to an external account that you have access to, you can look at the mail headers of the mail, and check in the received headers. There should eb something like:
Received: from your.dns.name.here (your.reverse.dns.here [xxx.xxx.xxx.xxx])
your.dns.name.here should be how your Domino server presents itself in the HELO/EHLO phrase. If your.reverse.dns.here exists, it should be your reverse DNS as looked up by the receiving SMTP server, together with xxx.xxx.xxx.xxx which is your IP address.
I took this from a mail sent by my Domino server to an internet mail account. It might look a bit different in your setup.