On 22/08/2023 09:17, Mark Elkins via Exim-users wrote:
I'm looking for advice on Grey Listing vs outlook.com's behaviour of retrying to send from multiple SMTP relays.
If you can identify a feature common to all such connections, use that rather than the remote-ip in your greylist DB tag. Also, if you know the always retry like real MTAs should (and some spammers don't), you may as well whitelist them. Or, autobuild a DB of known-retrier IPs, and use that to whitelist. -- Cheers, Jeremy -- ## subscription configuration (requires account): ## https://lists.exim.org/mailman3/postorius/lists/exim-users.lists.exim.org/ ## unsubscribe (doesn't require an account): ## [email protected] ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
