I set-up a local Postfix server in my company to relay email from an old windows software that doesn't support SMTP authentification.
I successfuly sent some test emails with telnet and outlook from windows. Then, i setup the old software "winfax expert 9" with this SMTP and now i'm stuck with this error that just keep showing up in the mail.log file of the local SMTP server:
Jan 4 09:26:37 Helium postfix/smtpd: connect from unknown[192.168.1.107] Jan 4 09:29:19 Helium postfix/smtpd: timeout after HELO from unknown[192.168.1.107] Jan 4 09:29:19 Helium postfix/smtpd: disconnect from unknown[192.168.1.107]
It seems to be a software failure from "winfax expert 9", how can i confirm this?