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error when using distribution address - 1.Dec.2008 5:47:34 PM

hmidaissam

Posts: 14
Joined: 6.Nov.2008
Status: offline

hello, I set up a distribution address type "marketing@co1.com" in this address have a registered user "user1" which has only an internal SMTP address type "user1@lan.co"and has the right to send from marketing@co1.com,
but when I send from the Internet mail to marketing@co1.com, user1 does not receive the message and I receive an error return type # 550 5.7.1 RESOLVER.RST.AuthRequired; authentication required # #

thank you in advance for your help

Post #: 1

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RE: error when using distribution address - 2.Dec.2008 11:15:09 AM

jveldh

Posts: 720
Joined: 12.Apr.2008
From: The Netherlands
Status: offline

Hi,

Perform the following steps to fix this issue:

1. Click the Distribution Group name as you want to set

2. Click the "Properties"

3. Click the "Mail Flow Settings" Tab

4. Click the "Message Delivery Restrictions" item

5. Click the "Properties..." button

6. Uncheck the "Require that all senders are authenticated" item

7. Click "OK" button

8. Click "OK" button again

This option is to to protect the distribution group from being abused by someone from the internet. But in your case you will need to change this because you need to receive mail from the internet.

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Best regards,

Johan Veldhuis

Visit my website

(in reply to hmidaissam)

Post #: 2

RE: error when using distribution address - 3.Dec.2008 9:40:55 AM