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sendmail "mail loops back error"



Hello all,


Actually I am experiencing problems with mail configuration on my redhat 7.3.
So, everithing works fine (I can send and receive e-mails) on our main domain (mod.gov.al), but I am not able to receive messages on the subdomains (example ft.mod.gov.al). I have the famous error message:

-------------
----- The following addresses had permanent fatal errors -----
<test ft mod gov al>
----- Transcript of session follows -----
451 4.0.0 MX list for ft.mod.gov.al. points back to ns1.mod.gov.al: No such file or directory
554 5.3.5 Local configuration error
Reporting-MTA: dns; ns1.mod.gov.al
Received-From-MTA: DNS; san1.sanx.net
--------------

I have put the subdomain's name on /etc/sendmail.cw file, but the problem persists.
I have experience on Slakware linux versions, but now I don't know what to do.
Some important config. files follow.


Thanks,

Agim

------------

.mc file
-----------------------------
dnl This is the sendmail macro config file. If you make changes to this file,
dnl you need the sendmail-cf rpm installed and then have to generate a
dnl new /etc/sendmail.cf by running the following command:
dnl
dnl        m4 /etc/mail/sendmail.mc > /etc/sendmail.cf
dnl
include(`/usr/share/sendmail-cf/m4/cf.m4')
VERSIONID(`linux setup for Red Hat Linux')dnl
OSTYPE(`linux')
dnl Uncomment and edit the following line if your mail needs to be sent out
dnl through an external mail server:
dnl define(`SMART_HOST',`smtp.your.provider')
define(`confDEF_USER_ID',``8:12'')dnl
undefine(`UUCP_RELAY')dnl
undefine(`BITNET_RELAY')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', `2000000')dnl
define(`confUSERDB_SPEC', `/etc/mail/userdb.db')dnl
define(`confPRIVACY_FLAGS', `authwarnings,novrfy,noexpn,restrictqrun')dnl
define(`confAUTH_OPTIONS', `A')dnl
dnl TRUST_AUTH_MECH(`DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl
dnl define(`confAUTH_MECHANISMS', `DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')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
dnl FEATURE(delay_checks)dnl
FEATURE(limited_masquerade)dnl
MASQUERADE_AS(mod.gov.al)dnl
MASQUERADE_DOMAIN(`ns1.mod.gov.al')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 The '-t' option will retry delivery if e.g. the user runs over his quota.
FEATURE(local_procmail,`',`procmail -t -Y -a $h -d $u')dnl
FEATURE(`access_db',`hash -o /etc/mail/access.db')dnl
FEATURE(`blacklist_recipients')dnl
dnl EXPOSED_USER(`root')dnl
dnl This changes sendmail to only listen on the loopback device 127.0.0.1
dnl and not on any other network devices. Comment this out if you want
dnl to accept email over the network.
dnl DAEMON_OPTIONS(`Port=smtp,Addr=127.0.0.1, Name=MTA')
dnl NOTE: binding both IPv4 and IPv6 daemon to the same port requires
dnl       a kernel patch
dnl DAEMON_OPTIONS(`port=smtp,Addr=::1, Name=MTA-v6, Family=inet6')
dnl We strongly recommend to comment this one out if you want to protect
dnl yourself from spam. However, the laptop and users on computers that do
dnl not have 24x7 DNS do need this.
dnl FEATURE(`accept_unresolvable_domains')dnl
dnl FEATURE(`relay_based_on_MX')dnl
MAILER(smtp)dnl
MAILER(procmail)dnl
dnl Cwlocalhost.localdomain

--------------------
/etc/Sendmail .cw file:

mod.gov.al
ns1.mod.gov.al
ft.mod.gov.al


dns
------------


mod.gov.al              IN SOA  san1.san.com.al. root.san1.san.com.al. (
                                200303151  ; serial
                                86400      ; refresh (1 day)
                                3600       ; retry (1 hour)
                                3600000    ; expire (5 weeks 6 days 16 hours)
                                604800     ; minimum (1 week)
                                )
                        NS      ns1.mod.gov.al.
                        NS      san1.sanx.net.
                        NS      san2.sanx.net.
                        MX      10 ns1.mod.gov.al.
$ORIGIN mod.gov.al.
ft                      MX      10 ns1.mod.gov.al.


-------------

/etc/mail/Virtusertable File:

@ft.mod.gov.al  mailft mod gov al












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