Hi, recently (about a week ago) *.outbound.protection.outlook.com started sending from three new /24 without valid FCrDNS
40.92.73.0/24 40.92.74.0/24 40.92.75.0/24 i.e. EUR04-HE1-obe.outbound.protection.outlook.com (HELO) sending from 40.92.73.10 The /16 is delegated to msft.net We have added them to the whitelist for scoring, but unfortunately the whitelist for Greylisting (which is necessary because the servers retry from different IPs) is FCrDNS based. Best Regards, Bernhard -- Bernhard Schmidt Netzbetrieb / IPv6 / DNSSEC Leibniz-Rechenzentrum Leibniz Supercomputing Centre Boltzmannstr. 1 D-85748 Garching b. Muenchen Tel: +49 89 35831-7885 E-Mail/Jabber: bernhard.schm...@lrz.de
smime.p7s
Description: S/MIME Cryptographic Signature
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