I perhaps need a bit more time to think on this- which I havent right now as I am dreadfully slow and not slept last night, but will look at the w/e again and play with a test account, but
this is mental. The graphic report in my earlier post was gmail.
The emailfor PMs is fine. PN mail says OK using PM notifications which use same server mail settings as password etc
Ive checked using the mxgoolbox website.
https://mxtoolbox.com/SuperTool.aspx#dkim:forum.kitz.co.uk:default
DKIM Record Published DKIM Record found
Status Ok DKIM Syntax Check The record is valid
Status Ok DKIM Public Key Check Public key is present
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ETA. slightly edited your post to remove any @. I know the address is out there, but data harvestrs still scan looking for new addresses to a add to their list
DMArc is something different... and on that particular note, Im tired of scammers pretending to be ethical hackers. Some of whom turn out to be not so nice when they realise youre not going to pay up thousands of $ from a bounty pot that I dont have. iirc it was Troy Hunt who warned a few years ago that chancers would try jump on that band waggon and they have. :/