POP3 and any other types of connections from inside to dmz mail server are fast, but SMTP slow ( mail server responses to 'Telnet <ip_addr> 25' over 5-10 sec). No errors are occured on both ethernet interfaces.
No problems with client performance and mail server when it moves to inside
Try permitting IDENT. Some SMTP hosts try to verify who is sending the e-mail before the accept it. Then it will give up and accept the e-mai anyway. Maybe you could disable that option on the SMTP host.
If the initial connection takes 5-10 seconds to come back, but then after that the response is "normal", then as the previous person said, this is probably an IDENT problem. The best way is to disable your SMTP server from doing this, but if you're not sure how to do that, you can tell the PIX to send an RST back to the mail server if it sees it by doing:
Login to the FXOS chassis manager.
Direct your browser to https://hostname/, and log-in using the user-name and password.
Go to Help > About and check the current version:
Check the current version availa...
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...