Hello,
We run an in house Exchange 2013 server single box, Email-02
The last 2 weeks one of our users has reported issues with some people she sends emails to, but it is only this person, but only some, not all.
Examples:
Text
smtpfw-1.mit.bit2host.com rejected your message to the following email addresses:Bryan Magsisi (*********@capitmedia.com)smtpfw-1.mit.bit2host.com gave this error:Syntax error, command unrecognized A problem occurred while delivering this message to this email address. Try sending this message again. If the problem continues, please contact your helpdesk.Diagnostic information for administrators:Generating server: Email-02.******************@capitmedia.comsmtpfw-1.mit.bit2host.comRemote Server returned '500 Syntax error, command unrecognized'Original message headers:Received: from Email-02.********* (10.50.*********)...
