How to add *.outlook.com to whitelist

[itret]

Hi.

I have a serious problem with some microsoft servers. From some of them messages are extremly delayed, I suppose this has something to do with greylist.

I've made few tests and after header analyze I noticed same message sent from one account to two different accounts on my server comes from two different xxx.protection.outlook.com servers.

I wonder if there's anyway just to add every outlook.com server to whitelist, because Who filer doesn't accept *.outlook.com

Please take a look on some other example below.

 

[Stoiko Ivanov]

I guess you're right - the issue is that outlook uses many ip-addresses to send out its email - and that greylisting in it's default setting considers one /24 as the default network to include in a listing.

You have the following options:
* set the greylist netmask to something quite a bit higher than 24 - judging by https://learn.microsoft.com/en-us/m...rls-and-ip-address-ranges?view=o365-worldwide - maybe even set it to /14...
* disable greylisiting
* add all ip-ranges (from the link above) to the mail-proxy whitelist

see also section 4.7.6 of the reference documentation:
https://pmg.proxmox.com/pmg-docs/pmg-admin-guide.html#_mail_proxy_configuration


I hope this helps!