Reflexion KBA's
Reflexion: Send mail through your approved SMTP relay, or add a PTR record so the rDNS check more closely resembles their HELO name error
Posted by Scott Barlow on 04 November 2016 12:51 PM

Overview

You get the the following error in Reflexion:

Send mail through your approved SMTP relay, or add a PTR record so the rDNS check more closely resembles their HELO name.

This error also occurs when there is an SPF record mismatch and the receiving server has a robust SPF checking rule.

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Comments (2)
Kenneth Knowles
23 July 2013 05:47 PM
Don't forget to add your exchange server as a trusted host in the Reflexion setup.
juan@reflexion.net
06 November 2013 12:37 PM
You can also used this script to change the default port to 587:

Open the Exchange Management Shell and enter both of the following
command replacing Default Send Connector with the actual name of your
Send Connector in the above Hub Transport section:

Set-SendConnector –identity “Default Send Connector” –
Port:587
Set-RecipientFilterConfig –Enabled $true
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