I have a problem while replacing the mail contacts with mailbox accounts. Because they have same email address, when user use Outlook to send email to the email address, error about non-existing users returned. Later found out that email is addressed using the deleted mail contacts. Need to manually delete the cached record and resend. Any better way?

Waiot for some time to repliacte SMTP address removed if you have deleted mail contact already. Is still you have issue then delete mail contact thru ADSI edit. Anil

Hi, Any updates on this issue? Here is a document about how to remove mail contact: How to Remove a Mail Contact http://technet.microsoft.com/en-us/library/bb124269(EXCHG.80).aspx If the problem persists, please help me to clarify the following information: 1. What is the detail distribution of the error, could you paste it in your next post? 2. Can you access the new mailbox via OWA? 3. Is there any error in your event log? Thanks, EvanPlease remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Diagnostic information for administrators: Generating server: hkmail01.bdphk.com IMCEAEX-_O=BDPHK_OU=EXCHANGE+20ADMINISTRATIVE+20GROUP+20+28FYDIBOHF23SPDLT+29_CN=RECIPIENTS_CN=Michelle+2Echan@bdphk.com #550 5.1.1 RESOLVER.ADR.ExRecipNotFound; not found ## If delete cached address from outlook before send, then ok.

Hi, Glad to hear that. Thank you for your reply. Best Regards, EvanPlease remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.