Sendmail & MailScanner - can't connect from public addresses

[Ugo Bellavance]

>-----Message d'origine-----
>De : James D. Parra [mailto:Jamesp at MUSICREPORTS.COM]
>Envoyé : 12 mars, 2004 19:02
>À : MAILSCANNER at JISCMAIL.AC.UK
>Objet : Sendmail & MailScanner - can't connect from public addresses
>
>
>Hello,
>
>Finished setting up the latest MailScanner and Sendmail, 
>however, although I
>can connect to the mail server via telnet to port 25 from any 
>machine on the
>local subnet, it does not respond from any request from public 
>IP addresses.
>There is no firewall on this server, but it is behind a 
>firewall. Nmap shows
>port 25 as open.  When I open port forwarding from two other 
>firewalls (from
>different ISP address ranges) to the mail server, I get no 
>response when
>telnetting from the public side to the smtp port. (It is not 
>the firewall
>since port forwarding works to the other mail servers)
>
>It appears that either Sendmail or MailScanner is only 
>accepting connections
>from the local subnet.

what does the output of "netstat -lpn" says?

even better... netstat -lpn | 25

Ugo

>
>Any ideas on how to fix this?
>
>This may be useful;
>grep "inet" /etc/mail/sendmail.cf
>#O ClientPortOptions=Family=inet, Address=0.0.0.0
>
>Many thanks in advance,
>
>James
>