I'm setting up my first full Linux (FC6) server, but can't get mail service to work with sendmail. At this point, I've ruled out a firewall problem since even with it completely down, I can't seem to get the ports to open. I have a local DNS setup with a MX entry, but I doubt that is related.
These are my symptoms:
1) I can't telnet into my yyy.yyy.yyy.yyy:110 port (where yyy.yyy.yyy.yyy is my external IP):
Code:
$ telnet yyy.yyy.yyy.yyy 80
Trying yyy.yyy.yyy.yyy...
Connected to host-yyy-yyy-yyy-yyy.ns1.xxxx.net (yyy.yyy.yyy.yyy).
^]
telnet> q
Connection closed.
$ telnet yyy.yyy.yyy.yyy 110
Trying yyy.yyy.yyy.yyy...
telnet: connect to address yyy.yyy.yyy.yyy: Connection refused
telnet: Unable to connect to remote host: Connection refused
2) nmap (from inside or outside) gives port 110 closed:
Code:
# nmap yyy.yyy.yyy.yyy -p 110
Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2007-03-23 23:07 MDT
Interesting ports on inet (yyy.yyy.yyy.yyy):
PORT STATE SERVICE
110/tcp closed pop3
Nmap finished: 1 IP address (1 host up) scanned in 0.193 seconds
3)
Code:
# sendmail -d0.1
Version 8.13.8
Compiled with: DNSMAP HESIOD HES_GETMAILHOST LDAPMAP LOG MAP_REGEX
MATCHGECOS MILTER MIME7TO8 MIME8TO7 NAMED_BIND NETINET NETINET6
NETUNIX NEWDB NIS PIPELINING SASLv2 SCANF SOCKETMAP STARTTLS
TCPWRAPPERS USERDB USE_LDAP_INIT
============ SYSTEM IDENTITY (after readcf) ============
(short domain name) $w = localhost
(canonical domain name) $j = localhost.localdomain
(subdomain name) $m = localdomain
(node name) $k = poppa
4) the firewall lets it in (I've even brought the firewall completely down to confirm)
Code:
# iptables -L
...
ACCEPT tcp -- anywhere anywhere state NEW tcp dpt:pop3
...
5) sendmail is indeed running:
Code:
# service --status-all 2>/dev/null | grep sendmail
sendmail (pid 21011 20878 11365 11353) is running...
6) my /etc/mail/sendmail.mc file:
Code:
# cat sendmail.mc | egrep -v "^dnl"
divert(-1)dnl
include(`/usr/share/sendmail-cf/m4/cf.m4')dnl
VERSIONID(`setup for linux')dnl
OSTYPE(`linux')dnl
define(`confDEF_USER_ID', ``8:12'')dnl
define(`confTO_CONNECT', `1m')dnl
define(`confTRY_NULL_MX_LIST', `True')dnl
define(`confDONT_PROBE_INTERFACES', `True')dnl
define(`PROCMAIL_MAILER_PATH', `/usr/bin/procmail')dnl
define(`ALIAS_FILE', `/etc/aliases')dnl
define(`STATUS_FILE', `/var/log/mail/statistics')dnl
define(`UUCP_MAILER_MAX', `2000000')dnl
define(`confUSERDB_SPEC', `/etc/mail/userdb.db')dnl
define(`confPRIVACY_FLAGS', `authwarnings,novrfy,noexpn,restrictqrun')dnl
define(`confAUTH_OPTIONS', `A')dnl
define(`confTO_IDENT', `0')dnl
FEATURE(`no_default_msa', `dnl')dnl
FEATURE(`smrsh', `/usr/sbin/smrsh')dnl
FEATURE(`mailertable', `hash -o /etc/mail/mailertable.db')dnl
FEATURE(`virtusertable', `hash -o /etc/mail/virtusertable.db')dnl
FEATURE(redirect)dnl
FEATURE(always_add_domain)dnl
FEATURE(use_cw_file)dnl
FEATURE(use_ct_file)dnl
FEATURE(local_procmail, `', `procmail -t -Y -a $h -d $u')dnl
FEATURE(`access_db', `hash -T<TMPF> -o /etc/mail/access.db')dnl
FEATURE(`blacklist_recipients')dnl
EXPOSED_USER(`root')dnl
DAEMON_OPTIONS(`Port=smtp,Addr=127.0.0.1, Name=MTA')dnl
FEATURE(`accept_unresolvable_domains')dnl
LOCAL_DOMAIN(`localhost.localdomain')dnl
MAILER(smtp)dnl
MAILER(procmail)dnl
What am I missing?
Thank you in advance for your advice.
Regards,
Richard
