Thanks I try this over the next day or two and see how it goes.

is it possible to add a transaction filter like.

from 'me@domain.co.uk' and ip address or host not myserversname / or IP address drop connection ??

Thanks

Yep, I do.

I have a transflt rule to drop any connections using a MAIL FROM of a local address.

They should only be coming from the local lan or a couple of fixed external addresses that are all exempted from transaction filtering in their Connection Control settings.

If you have external dynamic ip's this approach may be a bit difficult, although you can add exceptions for certain addresses (Edit: ABOVE the reject rule).

[quote]M, "*user@mydomain.com*", X, "MAIL FROM accepted"

M, "*@mydomain.com*", B, "554 Fraudulent MAIL FROM - rejected"

[/quote]

As you probably already noticed transaction filtering can only be applied to one SMTP command or header at the time, not a combination. You can cheat a bit, though. If you exempt all IPs that you send from yourself from transaction filtering (Connection control / Add restriction) you can then add a transaction filter to drop all incoming messages with 'me@domain.co.uk' as Mail From.

/Rolf