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divert(-1)dnl
dnl #
dnl # This is the sendmail macro config file for m4. If you make changes to
dnl # /etc/mail/sendmail.mc, you will need to regenerate the
dnl # /etc/mail/sendmail.cf file by confirming that the sendmail-cf package is
dnl # installed and then performing a
dnl #
dnl # make -C /etc/mail
dnl #
include(`/usr/share/sendmail-cf/m4/cf.m4')dnl
VERSIONID(`setup for Red Hat Linux')dnl
OSTYPE(`linux')dnl
dnl #
dnl # Uncomment and edit the following line if your outgoing mail needs to
dnl # be sent out through an external mail server:
dnl #
dnl define(`SMART_HOST',`smtp.your.provider')
dnl #
define(`confDEF_USER_ID',``8:12'')dnl
define(`confTRUSTED_USER', `smmsp')dnl
dnl define(`confAUTO_REBUILD')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
dnl define(`STATUS_FILE', `/etc/mail/statistics')dnl
define(`UUCP_MAILER_MAX', `11000000')dnl
define(`confUSERDB_SPEC', `/etc/mail/userdb.db')dnl
define(`confPRIVACY_FLAGS', `authwarnings,novrfy,noexpn,restrictqrun')dnl
define(`confAUTH_OPTIONS', `A')dnl
dnl #
dnl # The following allows relaying if the user authenticates, and disallows
dnl # plaintext authentication (PLAIN/LOGIN) on non-TLS links
dnl #
dnl define(`confAUTH_OPTIONS', `A p')dnl
dnl #
dnl # PLAIN is the preferred plaintext authentication method and used by
dnl # Mozilla Mail and Evolution, though Outlook Express and other MUAs do
dnl # use LOGIN. Other mechanisms should be used if the connection is not
dnl # guaranteed secure.
dnl #
dnl TRUST_AUTH_MECH(`EXTERNAL DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl
dnl define(`confAUTH_MECHANISMS', `EXTERNAL GSSAPI DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl
dnl #
dnl # Rudimentary information on creating certificates for sendmail TLS:
dnl # make -C /usr/share/ssl/certs usage
dnl #
dnl define(`confCACERT_PATH',`/usr/share/ssl/certs')
dnl define(`confCACERT',`/usr/share/ssl/certs/ca-bundle.crt')
dnl define(`confSERVER_CERT',`/usr/share/ssl/certs/sendmail.pem')
dnl define(`confSERVER_KEY',`/usr/share/ssl/certs/sendmail.pem')
dnl #
dnl # This allows sendmail to use a keyfile that is shared with OpenLDAP's
dnl # slapd, which requires the file to be readble by group ldap
dnl #
dnl define(`confDONT_BLAME_SENDMAIL',`groupreadablekeyfile')dnl
dnl #
dnl define(`confTO_QUEUEWARN', `4h')dnl
dnl define(`confTO_QUEUERETURN', `5d')dnl
dnl define(`confQUEUE_LA', `12')dnl
dnl define(`confREFUSE_LA', `18')dnl
define(`confTO_IDENT', `0')dnl
dnl FEATURE(delay_checks)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
dnl #
dnl # The -t option will retry delivery if e.g. the user runs over his quota.
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
dnl #
dnl # The following causes sendmail to only listen on the IPv4 loopback address
dnl # 127.0.0.1 and not on any other network devices. Remove the loopback
dnl # address restriction to accept email from the internet or intranet.
dnl #
dnl #
dnl # The following causes sendmail to additionally listen to port 587 for
dnl # mail from MUAs that authenticate. Roaming users who can't reach their
dnl # preferred sendmail daemon due to port 25 being blocked or redirected find
dnl # this useful.
dnl #
dnl # DAEMON_OPTIONS(`Port=submission, Name=MSA, M=Ea')dnl
dnl #
dnl # The following causes sendmail to additionally listen to port 465, but
dnl # starting immediately in TLS mode upon connecting. Port 25 or 587 followed
dnl # by STARTTLS is preferred, but roaming clients using Outlook Express can't
dnl # do STARTTLS on ports other than 25. Mozilla Mail can ONLY use STARTTLS
dnl # and doesn't support the deprecated smtps; Evolution <1.1.1 uses smtps
dnl # when SSL is enabled-- STARTTLS support is available in version 1.1.1.
dnl #
dnl # For this to work your OpenSSL certificates must be configured.
dnl #
DAEMON_OPTIONS(`Port=smtps, Name=TLSMTA, M=s')dnl
dnl #
dnl # The following causes sendmail to additionally listen on the IPv6 loopback
dnl # device. Remove the loopback address restriction listen to the network.
dnl #
dnl # NOTE: binding both IPv4 and IPv6 daemon to the same port requires
dnl # a kernel patch
dnl #
dnl DAEMON_OPTIONS(`port=smtp,Addr=::1, Name=MTA-v6, Family=inet6')dnl
dnl #
dnl # We strongly recommend not accepting unresolvable domains if you want to
dnl # protect yourself from spam. However, the laptop and users on computers
dnl # that do not have 24x7 DNS do need this.
dnl #
FEATURE(`accept_unresolvable_domains')dnl
dnl #
FEATURE(`relay_based_on_MX')dnl
dnl #
dnl # Also accept email sent to "localhost.localdomain" as local email.
dnl #
LOCAL_DOMAIN(`localhost.localdomain')dnl
dnl #
dnl # The following example makes mail from this host and any additional
dnl # specified domains appear to be sent from mydomain.com
dnl #
MASQUERADE_AS(`redstonenetworks.com')dnl
dnl #
dnl # masquerade not just the headers, but the envelope as well
dnl #
FEATURE(masquerade_envelope)dnl
dnl #
dnl # masquerade not just @mydomainalias.com, but @*.mydomainalias.com as well
dnl #
FEATURE(masquerade_entire_domain)dnl
dnl #
dnl MASQUERADE_DOMAIN(localhost)dnl
dnl MASQUERADE_DOMAIN(localhost.localdomain)dnl
dnl MASQUERADE_DOMAIN(mydomainalias.com)dnl
dnl MASQUERADE_DOMAIN(mydomain.lan)dnl
MAILER(smtp)dnl
MAILER(procmail)dnl
Distribution: OpenBSD 4.6, OS X 10.6.2, CentOS 4 & 5
Posts: 3,660
Rep:
You have many problems. First off, from the above it looks to me like your sendmail server is only running on port 465 (SMTPS). You can do a netstat -an and confirm that port 25 is not listening and 465 is. Change the DAEMON_OPTIONS line so that port=25. I do not know TLS in sendmail that well, but I'm assuming this will allow normal SMTP with the STARTTLS option. If it in fact ONLY listens for TLS, then you have a problem because most Internet SMTP servers don't support sending with TLS yet.
Next, your DNS is a mess:
Code:
[chort@abydos chort]$ dig @park9.secureserver.net redstonenetworks.com any
; <<>> DiG 9.2.1 <<>> @park9.secureserver.net redstonenetworks.com any
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 55045
;; flags: qr aa rd; QUERY: 1, ANSWER: 5, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;redstonenetworks.com. IN ANY
;; ANSWER SECTION:
redstonenetworks.com. 3600 IN SOA PARK9.SECURESERVER.NET. dns.jomax.NET. 309291101 10800 3600 604800 3600
redstonenetworks.com. 3600 IN NS PARK9.SECURESERVER.NET.
redstonenetworks.com. 3600 IN NS PARK10.SECURESERVER.NET.
redstonenetworks.com. 3600 IN MX 0 webmail.redstonenetworks.com.
redstonenetworks.com. 3600 IN A 216.93.223.228
;; Query time: 55 msec
;; SERVER: 64.202.161.141#53(park9.secureserver.net)
;; WHEN: Tue Sep 30 10:19:03 2003
;; MSG SIZE rcvd: 181
[chort@abydos chort]$ dig @park9.secureserver.net webmail.redstonenetworks.com any
; <<>> DiG 9.2.1 <<>> @park9.secureserver.net webmail.redstonenetworks.com any
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 21215
;; flags: qr aa rd; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; QUESTION SECTION:
;webmail.redstonenetworks.com. IN ANY
;; AUTHORITY SECTION:
redstonenetworks.com. 3600 IN SOA PARK9.SECURESERVER.NET. dns.jomax.NET. 309291101 10800 3600 604800 3600
;; Query time: 48 msec
;; SERVER: 64.202.161.141#53(park9.secureserver.net)
;; WHEN: Tue Sep 30 10:19:14 2003
;; MSG SIZE rcvd: 114
You need to define an A record for webmail which points to an IP address. Your root domain A record will usually be used as a last ditch attempt to deliver to you if your MX records are screwed up (they are), but see below both port 25 and 465 are blocked.
Code:
[chort@abydos chort]$ telnet 216.93.223.228 25
Trying 216.93.223.228...
telnet: Unable to connect to remote host: Connection refused
[chort@abydos chort]$ telnet 216.93.223.228 465
Trying 216.93.223.228...
telnet: Unable to connect to remote host: Connection refused
Thank you for responding.
I called the DNS host provider (godday.com) and they stated that the DNS, C Name, A record, MX record, are all setup properly...
;; ANSWER SECTION:
linux-hoster.co.uk. 7093 IN NS ns12.zoneedit.com.
linux-hoster.co.uk. 7093 IN NS ns14.zoneedit.com.
linux-hoster.co.uk. 7093 IN A 81.86.123.93
;; AUTHORITY SECTION:
linux-hoster.co.uk. 7093 IN NS ns12.zoneedit.com.
linux-hoster.co.uk. 7093 IN NS ns14.zoneedit.com.
;; ADDITIONAL SECTION:
ns12.zoneedit.com. 3572 IN A 64.246.26.64
ns14.zoneedit.com. 152853 IN A 209.126.159.80
Distribution: OpenBSD 4.6, OS X 10.6.2, CentOS 4 & 5
Posts: 3,660
Rep:
YOU DO NOT HAVE AN A-RECORD FOR WEBMAIL.REDSTONENETWORKS.COM!!!
How are people supposed to send you mail when your MX record does not resolve to an IP??? Most of the time an MTA will attempt to deliver to your root domain host in an attempt to be polite, but as you can see from my above example your root host is DENYING CONNECTIONS.
You need to add an A record for webmail.redstonenetworks.com as such:
Code:
webmail.redstonenetworks.com. 3600 IN A 216.93.223.228
Then your MX record will resolve properly and your DNS will be fixed. The other thing you need to do is open your firewall so port 25 actually forwards to your mail server and it will allow traffic through. No one can send you mail if port 25 is closed.
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