I doubt the (encrypted) zip file is triggering the outgoing spam filters. To confirm this is the case can you try emailing the zip file to yourself with no text in the message body. If confirmed then look at the text of the email that previously could not be sent with the zip file attachment.
I have this problem. It started 4 days ago. It relates to my website address www.discoveringbirmingham.co.uk . Whenever I put this on my email content it is now treated as a spam email. The spam system must have added it to a database. How do I get this legitimate www removed from spam filters?
⋮ …How do I get this legitimate www removed from spam filters?
The Forum Team (@ModTeam) would need to do this so I have flagged your post to them; note that it may take them a few days to reach your post (more given the Spring bank holiday). In the meantime consider using a URL shortening service with the text Discover Birmingham, for example Discovering Birmingham, in your email until Virgin Media address the issue.
Hi - Thanks - I like the work around but we need to try and get our URL off the spam database as well. I have no idea why putting my www into the body of an email now leads to the email being treated as spam. I did do a bulk email a week or so ago and every email had www.discoveringbirmingham.co.uk URL at the bottom. Surely though companies do this all the time?