You do not have permission to send to this recipient. For assistance, contact your system administrator.

The Doha exchange server was giving users this message this morning:-

Your message did not reach some or all of the intended recipients.

Subject:

Sent: 1/29/2012 10:20 AM

The following recipient(s) cannot be reached:

sabeesh@gmail.com on 1/29/2012 10:22 AM

You do not have permission to send to this recipient. For assistance, contact your system administrator.

<qatdoh-mb01.kinnad.ae #5.7.1 smtp;550 5.7.1 Unable to relay for

sabeesh@gmail.com>

After looking in:-

System Manager -> Administrative Groups -> Servers -> DUBBUR-MB02 (Main External Routing Gateway for Exchange) -> Protocols -> SMTP – > Right Click “Default SMTP Virtual Server -> Properties -> Access -> Relay

I could see that 192.168.100.21 was enabled to relay through DUBBUR-MB02.

On further investigation, i could see that QATDOH-MB01 had 2 nics enabled. One was 192.168.100.21 and the other was dynamic 192.168.210.127.

I disabled this nic and the relay started working again.

Thank you and good night!

——-

 

Ref: http://forums.msexchange.org/m_1800444455/mpage_1/key_/tm.htm#1800444455

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