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Email's bouncing back? - 7.Jun.2007 10:57:12 AM

bozard

Posts: 49
Joined: 11.Oct.2006
Status: offline

Diagnostic-Code: smtp;550 5.7.1 RESOLVER.RST.AuthRequired;
authentication required

Does anyone know what this error is all about?
I have email account which users receive email on just fine. But recently when I started creating new email accounts, the emails never come through and are bounced back to the sender saying they don't have authorization.

Could someone please help?

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RE: Email's bouncing back? - 7.Jun.2007 11:25:13 AM

bozard

Posts: 49
Joined: 11.Oct.2006
Status: offline

I just figured it out.

The email problems I was having where with Distribution Groups I had created in Exchange 2007 under Recipient Group, then under Distribution Group, You have to go to the properties of the email account in question and go under the TAB �Mail flow settings�. There under Message Delivery Restrictions make sure that there is NO check mark box inside of "require that all senders are authenticated�.

Once I unchecked this box my emails started working.

I hope this helps someone else beside just me?

B

(in reply to bozard)

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