topic PIX causing problems with TLS esmtp session in Network Security https://community.cisco.com/t5/network-security/pix-causing-problems-with-tls-esmtp-session/m-p/1215818#M875581 <P>There is one particular outside mail server we're having trouble sending to. Basically, our server (Groupwise) does an EHLO, and the other server offers STARTTLS. Our server sends a STARTTLS, sends a few bytes of encrypted data, and then the other server sends a RST. </P><P></P><P>If we try a test server outside the PIX, everything is fine.</P><P></P><P>I've looked at "no fixup protocol smtp 25" and "no inspect esmtp" and those already seem to be in place.</P><P></P><P>Could the pix be doing something with the certificate? Could esmtp inspection still be on?</P><P></P><P>Thanks!</P> Mon, 11 Mar 2019 14:58:39 GMT spfister336 2019-03-11T14:58:39Z PIX causing problems with TLS esmtp session https://community.cisco.com/t5/network-security/pix-causing-problems-with-tls-esmtp-session/m-p/1215818#M875581 <P>There is one particular outside mail server we're having trouble sending to. Basically, our server (Groupwise) does an EHLO, and the other server offers STARTTLS. Our server sends a STARTTLS, sends a few bytes of encrypted data, and then the other server sends a RST. </P><P></P><P>If we try a test server outside the PIX, everything is fine.</P><P></P><P>I've looked at "no fixup protocol smtp 25" and "no inspect esmtp" and those already seem to be in place.</P><P></P><P>Could the pix be doing something with the certificate? Could esmtp inspection still be on?</P><P></P><P>Thanks!</P> Mon, 11 Mar 2019 14:58:39 GMT https://community.cisco.com/t5/network-security/pix-causing-problems-with-tls-esmtp-session/m-p/1215818#M875581 spfister336 2019-03-11T14:58:39Z Re: PIX causing problems with TLS esmtp session https://community.cisco.com/t5/network-security/pix-causing-problems-with-tls-esmtp-session/m-p/1215819#M875582 <HTML><HEAD></HEAD><BODY><P>You may try bypassing the spam server just to make sure that it is not theone causing to filter out few esmtp commands.</P></BODY></HTML> Thu, 05 Mar 2009 22:30:02 GMT https://community.cisco.com/t5/network-security/pix-causing-problems-with-tls-esmtp-session/m-p/1215819#M875582 2009-03-05T22:30:02Z