Hi
Glad it’s been resolved and kudos to kitz and vidahost.
I think it’s important here to state that email is not a guaranteed medium of delivery. However, it seems more and more that users believe it is. It is not.
Also, running email servers require constant work to ensure high deliverability
Spam control is constantly fluid, and the bad people who want to send spam, are aware of most measures to stop it, so they keep adapting.
@7lm - Microsoft measures which caught kitz, sounds like a good system, but needs to evolve before been pushed higher up the filters for defence of spam.
Virgin media had a similar issue a few months ago, not the same but had issues greylisting which caught a lot of ISP/ESP out. However, I was one of the admins who reported the issue and helped to change their filter by providing log details/testing externally so it was more reliable.
@kitz - now you have been added to whitelist, subject to your server not been compromised and mass mail been sent, you should no longer have issues in MS mail been accepted but it is still possible to be sent to spam folder of recipients, as everything is fluid I think most sites now state to check their spam folder if email not received
There’s more but it goes off topic
Many thanks and sorry for the long post
John