Fedora core 1 sendmail problems

[Homer Sapions]

My hosts file has only the following. I have not listed the IP address that 
corresponds to my linksys external interface, which is what dyndns.org has 
registered as the myhost.mydomain part, because it is a DHCP assigned 
address provided by my cable modem company, which could change.

127.0.0.1          localhost.localdomain localhost
192.168.1.12    myhost.mydomain.org myhost    # my internally assigned DHCP 
address to Fedora



>From: Dave Simko <dave at simtech.no-ip.com>
>Reply-To: dave at simtech.no-ip.com,For users of Fedora Core releases 
><fedora-list at redhat.com>
>To: For users of Fedora Core releases <fedora-list at redhat.com>
>Subject: Re: Fedora core 1 sendmail problems
>Date: Sun, 28 Mar 2004 18:50:15 -0500
>
>How is your host file setup do you have myserver.mydomain.org in there and 
>is it using you NAT'd address?
>
>Dave
>
>
>Homer Sapions wrote:
>
>>I have been searching the archives of this list and google and not yet 
>>found the solution to my problem. It seems like this is a common problem 
>>with sendmail on new installations of Fedora, so I am frustrated by not 
>>finding a solution that works for me. I would really appreciate any help.
>>
>>I had a RedHat 7.3 installation working properly, both sending and 
>>receiving mail with sendmail. I wanted a clean Fedora install, and since 
>>then I can send, but not receive mail.
>>
>>I have modified /etc/mail/sendmail.mc and commented out the line
>>dnl # DAEMON_OPTIONS(`Port=smtp,Addr=127.0.0.1, Name=MTA')dnl
>>then ran make -C /etc/mail and restarted sendmail with service sendmail 
>>restart.
>>
>>I also modified /etc/mail/access and added
>>localhost.localdomain           RELAY
>>localhost                       RELAY
>>127.0.0.1                       RELAY
>>myserver.mydomain.org   RELAY
>>then restarted sendmail.
>>
>>I have a 4 port linksys as a router/firewall between my cable modem and my 
>>server (and 2 other PCs). Port forwarding is enabled on the linksys to 
>>allow http traffic, and smtp on port 25 to be forwarded to the server - 
>>which was all working correctly before the Fedora install.
>>
>>I ran ethereal and watched connections, not that I understand much of the 
>>packet info. I see connection attempts, but external mail servers never 
>>complete a connection. The typical pattern seems to be a remote server 
>>sends a SYN on port 25, I reply with SYN,ACK. Remote sends a SYN, I send 2 
>>SYN,ACKs. Remote sends a SYN, and I send 3 SYN,ACKs, and eventualy the 
>>rmote gives up.
>>
>>>From any PC inside my network I can telnet to the server on port 25 and
>>
>>issue basic smtp instructions. I can do the same locally with 127.0.0.1  
>>e.g.
>># telnet myserver.mydomain.org 25
>>Trying 192.168.1.12...
>>Connected to myserver.mydomain.org.
>>Escape character is '^]'.
>>220 myserver.mydomain.org ESMTP Sendmail 8.12.10/8.12.10; Sun, 28 Mar 2004 
>>11:41:01 -0500
>>mail from: someone at xxx.org
>>250 2.1.0 someone at xxx.org... Sender ok
>>rcpt to: homer
>>250 2.1.5 homer... Recipient ok
>>data
>>354 Enter mail, end with "." on a line by itself
>>Subject: test message
>>this is a test
>
>
>
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