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550 5.7.1 RESOLVER.RST.AuthRequired; authentication required

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All Forums >> [Microsoft Exchange 2007] >> Message Routing >> 550 5.7.1 RESOLVER.RST.AuthRequired; authentication required Page: [1]
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550 5.7.1 RESOLVER.RST.AuthRequired; authentication req... - 17.May2007 3:26:54 PM   
jvandaele

 

Posts: 3
Joined: 17.May2007
Status: offline
Why do I have this message :
550 5.7.1 RESOLVER.RST.AuthRequired; authentication required

The transport rule is : transfert from <email> to a <universal distribution group> ?
My goal is to make a rule like support@xxx.fr transfert to internalsupport@xxx.fr (internalsupport is an universal distribution group)
It's works when the rule is transfert from <email> to <list of email chose one by one>

Thanks for your soon answer.
Best regards.

I have the book Henril Walther about Exchange 2007, but there is no help !
Post #: 1
RE: 550 5.7.1 RESOLVER.RST.AuthRequired; authentication... - 26.Jul.2007 4:47:58 PM   
itadmin

 

Posts: 23
Joined: 20.Jun.2007
Status: offline
I see this is an old question, but no one answered it and I had the same problem. 
By default, the mail flow settings for distribution groups restrict the use of the groups to authenticated users.
Go to the properties of the distribution group.  Go to the Mail Flow Settings tab.  Under Message Delivery Restrictions, uncheck the box that says Require Authentication.
Worked like a champ for me.

(in reply to jvandaele)
Post #: 2
RE: 550 5.7.1 RESOLVER.RST.AuthRequired; authentication... - 1.Dec.2008 11:04:06 AM   
zeb

 

Posts: 1
Joined: 1.Dec.2008
Status: offline
I am having the same issue with Exchange 2008.
I've checked the group properties, and unchecked the authentication required box, deleted and re-created the group also. I'm still getting reports that outside people are unable to email the group because of authentication issues.
Any ideas?

(in reply to itadmin)
Post #: 3

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