Hi !
I try to telnet from outside, but there's no response. From internal or my other servers that in one subnet, I get this answer telnet reynaldi.dyndns.org 25 Trying 202.152.21.230... Connected to reynaldi.dyndns.org. Escape character is '^]'. 220 arie.reynaldi.dyndns.org ESMTP Postfix
But from other place I got no response telnet reynaldi.dyndns.org 25 Trying 202.152.21.230... telnet: connect to address 202.152.21.230: Connection timed out
And in my /var/log/mail, there's no messages that shows any connection from ex. yahoo.com or any other servers.
--> I could image two options: 1) your ISP is not forwarding packets to port 25 ==> talk to the tech people of your ISP 2) the packets are blocked by the firewall ==> try to enable logging of all packets in the SuSEfirewall2 script, section 16 FW_LOG_DROP_ALL="yes" Then have a look in /var/log/messages or /var/log/firewall to find out why the packets are dropped. HTH, Armin -- Am Hasenberg 26 office: Institut für Atmosphärenphysik D-18209 Bad Doberan Schloss-Straße 6 Tel. ++49-(0)38203/42137 D-18225 Kühlungsborn / GERMANY Email: schoech@iap-kborn.de Tel. +49-(0)38293-68-102 WWW: http://armins.cjb.net/ Fax. +49-(0)38293-68-50