Sendmail not accepting connections on port 25
ssgriffonuser at gmail.com
Tue Jul 19 14:28:07 UTC 2011
I'm having difficulty getting sendmail set up on my server. I can send
and receive to localhost and I can send to external networks but I can
not receive from external networks (I receive a 550: Address rejected).
Netstat says sendmail is listening on port 25 but I cannot telnet to it.
When I do a port scan of the server, nmap does not show anything on port
25 but does show smtp on 587.
As far as configuration goes, I added my hostname to
/etc/mail/local-host-names and created a /etc/host/virtusertable that
admin at host.com shane
shane at host.com shane
then I ran 'make all install restart' .
A couple more things that might be useful, I have a second ethernet
interface that I am guessing my provider uses for maintenance (internal
lan) and I shut my firewall completely off while testing.
The output of netstat and (filtered) nmap is:
netstat -a | grep smtp*:
*tcp6**0 0 0 *.smtp *.* LISTEN
tcp4**0 0 0 *.smtp *.* LISTEN
nmap -A -T4 gatanova.com Starting Nmap 5.51 ( http://nmap.org ) at
2011-07-18 22:27 MST
Not shown: 996 filtered ports PORT STATE SERVICE VERSION
587/tcp open smtp Sendmail 8.14.4/8.14.4
| smtp-commands: gatanova Hello ip24-251-146-122.ph.ph.cox.net
[18.104.22.168], pleased to meet you, ENHANCEDSTATUSCODES, PIPELINING,
8BITMIME, SIZE, DSN, DELIVERBY, HELP
|_ 2.0.0 This is sendmail version 8.14.4 2.0.0 Topics: 2.0.0 HELO EHLO
MAIL RCPT DATA 2.0.0 RSET NOOP QUIT HELP VRFY 2.0.0 EXPN VERB ETRN DSN
AUTH 2.0.0 STARTTLS 2.0.0 For more info use "HELP <topic>". 2.0.0 To
report bugs in the implementation see 2.0.0
http://www.sendmail.org/email-addresses.html 2.0.0 For local information
send email to Postmaster at your site. 2.0.0 End of HELP info
Any help is greatly appreciated!
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