We had the same issue migrating from GroupWise to Exchange 5.5 a few years back.
Outlook doesn't really cache anything in the sense that you're talking about. It merely neglects to re-look-up the address in a reply. Normally, this makes sense. If you send me a message and I reply, there's no reason to waste the CPU cycles or the bandwidth to verify that the address still exists. What we told people to do is when they get the bounce messages, do a resend, delete all of the addresses from the From, CC, etc. fields and type them again. This forces a new GAL lookup and should find the up to date addresses. This will be a problem that will lessen as time goes on. > -----Original Message----- > From: Matt Hoffman [mailto:[EMAIL PROTECTED] > Sent: Monday, November 24, 2003 11:56 AM > To: Exchange Discussions > Subject: Silly Outlook Addressing Problem > > > OK, I'm sure this is a newbie question, but I don't even know what to > call this problem in order to look it up: > > After our upgrade to Exchange 2000 from 5.5 many of our users are > experiencing a problem where they are getting undeliverable emails to > other staff members. This is definitely a problem with the X400 > addresses, since they have changed and the SMTP addresses > have not (and > in fact, when looking at their "sent item" I can see the old X400 > address from the 5.5 system is still in there). > > So, I surmise that the problem has to do with how Outlook holds on to > past email addresses. My guess is that the users are > responding to old > emails that came from users back when the old system was in place and > are therefore getting the old X400 addresses. This is sticking in > Outlook's "cache" (again, note that I'm not an Outlook expert) and > causing problems when they then attempt to send to that user again. > > So, two possible related solutions: > > 1. get rid of the X400 addresses if they are not necessary. We have > only one Exchange server and are not likely to get another. Do we > really need them? > > 2. Figure out how to turn off Outlook's "caching" of email addresses. > How does one do that? Is there a way to do it via Active Directory > GPO's? > > Thanks for any help, > > Matt > > _________________________________________________________________ > List posting FAQ: http://www.swinc.com/resource/exch_faq.htm > Web Interface: > http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&t ext_mode=&lang=english To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&text_mode=&lang=english To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED]
