I met the administrator of a national airway company whose IP addresses (used to send airplane tickets) were blacklisted. He had serious problems recovering the reputation of those IPs. Failing that, he jumped into O365, but they are still having problems. I am not surprised.
On Sun, Oct 14, 2018 at 08:17, Daniele Duca <d...@staff.spin.it> wrote: > On 13/10/2018 19:51, Rupert Gallagher wrote: > >> "The message was marked as spam by the content filter." >> >> Nice... so they know they are sending spam! > > Who doesn't :) > > I mean, for a setup big enough like theirs, having abused accounts or > outright spammers is somewhat endemic. What I think they are doing is trying > to limit the damages by routing outbound thought spam with different /24s > hoping to keep most used IPs as clean as possible. I do the same for outbound > emails, but my setup have a little more than 10k users and I deal immediately > with any abused account. > > Just FYI, I looked at my logs for the last 10 days and I have ~250 email > inbound from O365 tagged with SFV:SPM , about 50 are legit emails (so their > error), but more worrying is that there is also malware being delivered from > O365 :( This mean they don't even do basic outbound virus scanning, or do it > very poorly. > > On 12/10/2018 23:40, David Jones wrote: > >> Maybe they need to start using >> >> SpamAssassin and hire some of us to do their mail filtering. :) > > I think that too :D > > Daniele
