mail.brill-idea-solutions.com.brill-idea-solutions.com
Note the doubled domain name - so even if "brill-idea-solutions.com" is configured correctly, "mail.brill-idea-solutions.com.brill-idea-solutions.com" is not.
I have seen this behavior on my SME 7 system from alpha 2 through RC3 (I haven't updated to Final yet) - where the SME server domain name gets added to the tail end of email addresses and URLs when accessed from my Windows XP workstation or from the server.
I can get around it by adding a trailing dot to the URL or email address - "admin@mail.brill-idea-solutions.com
.", but this is not a solution, only a step towards understanding.
I've observed this behavior, but haven't spent any time or effort trying to resolve it as it doesn't impact my operation.
My original assumption was that it was related to having setup a DynDNS account for my server with "wildcard" turned on, but I have since turned off the "wildcard" setting on my DynDNS data with no change to this issue.