There was a SMTP communication problem with the recipient's email server #5.5.0 smtp;553 company.local does not exist
Posted on 2006-06-26
I have added 2 new users to our SBS2003 Std server. All users email on behalf of our company mail account. firstname.lastname@example.org.
The problem is the 2 new users are coming back with the following error.
email@example.com on 27/06/2006 8:24 AM
There was a SMTP communication problem with the recipient's email server. Please contact your system administrator.
<mail.company.com.au #5.5.0 smtp;553 company.local does not exist>
I have compared the new account to old accounts and can not see any difference. All users have send on behalf of permissions for the firstname.lastname@example.org account.
They also have full access rights to the email@example.com user account to check incoming emails, contacts, etc.
The user accounts have their reply email addresses as firstname.lastname@example.org (have deleted their email@example.com) so they do not have an external mail address.
They can send on behalf of the firstname.lastname@example.org account to an internal email address with no issues and from their own account to internal email addresses.