Since last night I can't send out domain name email to a One Tel email address. I get a bounceback error 'Sender Domain Invalid (TT403)'.Virgin Media suddenly doesn't recognise my domain name? Or is the problem with the One Tel (TalkTalk) and Virgin Media 'handshake'?
I appear to be able to send out email to anyone else.
Talk Talk is blocking VM emails.
Can you post the domain name you're sending from?
Note I don't need the full address just the bit that comes after the @ symbol.
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