The Exchange Mail servers run ESMTP.
The only way the PIX Firewall allows ESMTP is to disable the fixup protocol smtp 25.
Does this not create security expsoures on the firewall for SMTP.
Is there a way to customize mailguard to protect SMTP and still allow ESMTP through.
It is a free upgrade if you have a smartnet contract on your PIX. A Smartnet contract entitles you to free software upgrades on the convered hardware. Hope this helps explain matters.