You CAN assign the postmaster address to a mailbox, if you wish. You can also create a quarantine mailbox that is used to store certain kinds of spam.
Exchange is quite configurable. :-) Sent from my Windows Phone ________________________________ From: Kurt Buff<mailto:[email protected]> Sent: 2/12/2014 2:49 PM To: [email protected]<mailto:[email protected]> Subject: Re: [Exchange] Spam and Postmaster Question On Wed, Feb 12, 2014 at 10:29 AM, Geoff Orlebeck <[email protected]> wrote: > We recently replaced a new client’s SBS 2003 with Exchange 2010 SP3 UR4. > There is a user asking bout gaining access to Postmaster mailbox for spam > review. Am I crazy, or is the postmaster only used for NDR delivery/replies? > This client has spam filtering provided by their web host (we are working on > changing that as well). But she states she previously accessed > [email protected] for their spam emails. I just want to make sure > before I reply back that I’m not off base here. The > ExternalPostmasterAddress property is designed for NDR and not spam, > correct? No spam emails will go and sit in the postmaster mailbox defined on > Exchange….right? You are sort of correct.Using the postmaster@ address as a catchall is normally a mistake. However, NDRs are usually delivered with a null sender address, not with postmaster@. Well, I'd argue that using a catchall address is a mistake anyway, but that's a whole other discussion. See https://www.ietf.org/rfc/rfc2142.txt for recommendations and requirements regarding standard email system accounts (I believe this is still the current RFC - but I haven't kept up for a few years). See also these fairly helpful links for a bit more info: http://en.wikipedia.org/wiki/Bounce_message https://www.roe.ch/MTA_BCP Kurt
