Tags:
Microsoft, Exchange 2003, 2003 Sp2, There was a SMTP communication problem with the recipient's email server. Please contact your system administrator.
There was a SMTP communication problem with the recipient's email server. Please contact your system administrator. <mydomain.com #5.5.0 smtp;530 authentication required for relay (#5.7.1)>
So we've been receiving rejection emails when sending to only one or two domains. See above error. I've tried many things and am at my witts end. Can someone give me some insite?
Here is the setup: 2 office locations. Location 1 - Exchange server and other servers (file, domain, etc) Location 2 - Domain controller/file server
All users connect to exchange using outlook 2003 sp3 with Outlook over http. It seems that the Location 2 users are the ones having the bounced email issue. I've asked users at Location 1 and they are not receiving any bounces. I have received bounces using Outlook Webmail. These bounces are sometime intermittant.
