Hi there,
so if you have spamd in place in greylisting mode and you have customers
that work with people who use Office365 as a service you will get calls
that emails are delayed for a freaking long time and if you check the ip
range that outlook.com could send from you get scared.
So what are the strategies out there to handle this kind of situation?
Do you let them all pass and trust that microsoft is protecting there
service enough to stop spamming from hijacked machines that use office365 ?
Do you gradually grand access to a new ip rang if you see its tring to
reach your server and let the rest be?
Just curious here I had a case where you could dig the mx for a domain
and it was a outlook.com server. It was whitelisted in my system but it
seems MS is using this mx to retrieve mail and still send mails even
from that domain with other mx in diffrent ranges. So you see 30 grey
entries from diffent mx that trying to reach the customers mailbox.
I'm a little reluctant to whitelist a shitload of ips just to get rid of
a 1 or 2 day delay in delivering the message and yes this was the case
regards
--
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