Back in the day I would configure special entries in the proxyAddresses attribute for users to denote some specific info that I needed to capture regarding mail systems, in particular this was around some mail routing type items that was intended to be used by non-MSFT systems looking at Exchange users. I would use a custom prefix (i.e. not SMTP or X400 or like) and then slap whatever info I needed. I tested this pretty extensively with Exchange 2000 and Exchange 2003 and never encountered an issue with doing it, Exchange effectively ignored those entries.
Does anyone know if this has changed with Exchange 2007 or Exchange 2010? My expectation is no, it is exactly the same but I was working on something today and recalled this solution and was wondering if it would still work.
Are there any documents with actual rules on the proxyAddresses data population? This isn’t likely with Exchange attributes but thought I would toss the question out anyway. ;o)
joe
I know that LCS/OCS wants to place a SIP: address into proxyAddresses. We’ve not allowed that to happen yet as there isn’t value-level security to keep different teams from stepping on each others values. But given that one of Microsoft’s own products adds a different proxyAddresses value should provide some level of validation. That value will obviously vary based on past experience.
Hey Dave, thanks! I have seen lots of different prefixes now. My notes show SMTP, X400, X500, PROFS, SNADS, CCMAIL, VINES, NOTES, MS, GWISE, and SIP. It is definitely my expectation that any prefix is ok and that Exchange only works with what it knows, but would feel better with actual documentation to that effect, especially since I haven’t had a chance to test Exchange 2007 or Exchange 2010. It would also be interesting to know if there is a registration proces for that so companies don’t step on each other’s toes. I doubt that is the case, but it would be nice.
Joe, add FAX: to that list if it includes formats used by 3rd parties, i.e. GFI FAXmaker.
Ah yes Andrew thanks, not sure why that one isn’t in my notes. I have hit it a few times now…
Few more…
EUM
RFAX
MS
MSA