I have a very strange problem - I am running PIX 525 with ver 7.2 software. I am receiving email from my customer OK. But i have only one customer who is unable to send me emails with attachments, but can send me plain text.
Below is the error message
188.8.131.52 %PIX-6-302014: Teardown TCP connection 21751289 for INT-PUB:IP Addr/45556 to INT-DMZ1:IP addr duration 0:00:01 bytes 137772 TCP Reset-O\
I dont think its my firewall, but either something in MailMarshel or the otherend.
The other end is able to send email to everyone with attachments without a problem.
I can send him an the other end an email with an attachment successfully