thanks Roberto...

yes, this is one of our users at his home account mailing to his works one.

seems to be affecting his mail particularly regularly, both from himself and from colleagues.

I've not been able to duplicate the problem myself, but the server is giving occasional "out of memory" and the errors I mentioned before 4-5 times an hour at a rough estimate (I can zip a section of a logfile up if this would help).

NB I've completely removed spamfilter, cleared all mentions in the registry then re-added it "fresh" (the geo-ip.dat or similar named file seemed to be deleting itself which was a bit odd).

Upto now, spamfilter has been very stable so it did surprise me... (wondered about a hardware/ memory fault or fault elsewhere causing glitches? firewall even I suppose is possible at the end of the day.)

anyway, the server is currently set to max of 10 connections but still giving these errors.

Do you want me to get the user to mail you his same "test" attachment to you then? will do.

thanks

Martin