Sending HELO for different IPs

[ukzembla]

I'm having trouble getting the correct HELO response from my server, which always identifies itself as vps.serverdomain.com regardless of what I do.

I've checked "Send HELO based on the domain name in /etc/mailhelo" and "Send outgoing mail from the ip that matches the domain name in /etc/mailips", edited both of those files and restarted exim, but no banana.

/etc/mailhelo contains:

newdomain.com: newdomain.com
otherdomain.com: otherdomain.com
*: vps.serverdomain.com

and /etc/mailips contains:
newdomain.com: ##.#.#.172
otherdomain.com: ##.#.#.174
*: ##.#.#.169

where each of the IPs has rDNS set up correctly.

What, if anything, am I doing wrong?

Thanks,

Alex

[ukzembla]

In case it helps anyone, I added this to the top box of the advanced exim config editor and it now works fine:

primary_hostname = vps.domain.com
smtp_active_hostname = ${if exists {/etc/mailhelo}{${lookup{$interface_address}lsearch{/etc/mail_reverse_dns}{$value}{$primary_hostname}}}{$primary_hostname}}
smtp_banner = "${smtp_active_hostname} ESMTP Exim ${version_number} \#${compile_number} ${tod_full} \n We do not authorize the use of this system to transport unsolicited, \n and/or bulk e-mail."