mauirixxx 1 Posted December 10, 2013 Share Posted December 10, 2013 Aloha, I'm running Mail Security for Exchange on Exchange 2010 and have turned on greylisting, which has helped a lot. However, I'm trying to see if I can "speed up" the greylisting process for legitimate e-mail. I'm constantly watching the greylist tab via ERAC, and have a whitelist policy I push out via ERAC that I update whenever I notice greylisting has caught a client, but it doesn't seem to matter to the greylist engine. We have a few clients whose provider uses the hostedmail.com e-mail service, specifically, their e-mails keeps coming from "smtprelay.b.hostedmail.com" which has multiple IP addresses. The problem I run into is the initial e-mail comes from that host via one particular IP address, gets rejected (as per greylist design), but the 2nd attempt to resend the mail comes back via a whole new IP address, starting the greylisting process over again! Is it possible to tell EMSX to allow email from that host no matter the IP, or do I really need to track down all the IP addresses associated with that host, so that the greylist engine won't hold up legit emails any longer then needed? Mahalo! Link to comment Share on other sites More sharing options...
Administrators Marcos 5,243 Posted December 10, 2013 Administrators Share Posted December 10, 2013 The solution is to add all these IP addresses to the list of ignored IP addresses. Link to comment Share on other sites More sharing options...
mauirixxx 1 Posted December 10, 2013 Author Share Posted December 10, 2013 ok got it, now to wait, see, and verify! Mahalo! Link to comment Share on other sites More sharing options...
mauirixxx 1 Posted December 12, 2013 Author Share Posted December 12, 2013 New wrinkle - I "ignored" the whole block of IP addresses: 64.98.42.1-64.98.42.254 And I'm still getting e-mails from those IP's rejected by the greylist engine. Should I move it from ignored to allowed? Link to comment Share on other sites More sharing options...
Bart 4 Posted December 17, 2013 Share Posted December 17, 2013 Did You preloaded antispam engine after making changes on list? Link to comment Share on other sites More sharing options...
deflex-it 0 Posted February 9, 2016 Share Posted February 9, 2016 We've tried to add IP addresses (and ranges) and it worked in version 4.5 (not in 4.3). Is greylisting also affected/deactivated by adding domains or e-mail addresses to "approved sender" list (positiv list)? We added some domains and mails form that domains are still checked in greylisting. Link to comment Share on other sites More sharing options...
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