Hi, I have recently purchased an ASA 5505 v7.2(2), and have been unable to send SMTP through it. The effect of the problem seems similar to other postings I've read, where disabling fixup/inspect esmtp resolves the problem. I've done this, but to no avail. When sending mail (using NAT) the ASA appears to hijack the session, and firstly block the SMTP banner, before issuing 'quit'
Fri 2007-07-27 10:44:24: Waiting for protocol to start...
If I telnet to port 25 through the ASA and issue the SMTP commands myself, it seems to work fine even though the banner is blanked out by stars (so I'm not sure if this points to the problem being something else) however I do occasionally get 'I don't understand that?' answers from our SMTP server, when I know I've issued the correct command.
I have raised this with the re-seller, however they have advised that it is a hardware problem, and that we should replace the ASA. I don't believe that this is the case, has anybody experianced similar problems, or is able to offer any advice?
We have configured the outside and inside Interface with official ipv6 adresses, set a default route on outside Interface to our router, we also have definied a rule , which also gets hits, to permit tcp from inside Interface to any6.
In Syslog I also se...