Sunday, 13 March 2016

Find hosts that send SMTP traffic to an Exchange server

Recently I had to identify all SMTP sources that were still sending mail via legacy servers, with a view to reconfigure them and decommission the old infrastructure.

Wrote a script that did just that for me. Download it from

An obvious prerequisite is to have Receive connector logging enabled for some time to allow traffic to be captured.

Enjoy :-)

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