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Thread: Postfix/Dovecot Mail just stopped working on the 27th

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here setup...
ubuntu server, lucid, postfix/dovecot/squirrel mail handle email. web server, hosting 4 domains. virtual mail each of domains.
server in dmz off linksys router connected comcast...

working perfectly, until 27th of last month, when stopped working @ all. no mail out, no mail in.
web pages work.
inside domain, mail seems flow... but, once go outside... boom, nothing.

telnet:
code:
telnet mydomain.com 25 trying 67.166.xx.xx... connected mydomain.com. escape character '^]'. 220 www.mydomain.com esmtp postfix (ubuntu) mail from:somebody@mydomain.com 250 2.1.0 ok rcpt to:somebody@notmydomain.com 554 5.7.1 <somebody@notmydomain.com>: relay access denied
squirrel mail allows access.

when send mail in myself google, get:
code:
this warning message only.  not need resend message.  delivery following recipient has been delayed:      somebody@mydomain.com  message retried 2 more day(s)  technical details of temporary failure: recipient server did not accept our requests connect. learn more @ http://support.google.com/mail/bin/answer.py?answer=7720 [(0) mydomain.com. [67.166.xx.xx]:25: connection timed out]
the log file says:
code:
may  2 21:50:51 ds-9 postfix/smtp[12255]: connect smtp.comcast.net[76.96.xx.xxx]:25: connection timed out
the main.cf file:
code:
myorigin = /etc/mailname smtpd_banner = $myhostname esmtp $mail_name (ubuntu) biff = no append_dot_mydomain = no smtpd_tls_cert_file = /etc/pki/tls/certs/smtpd.crt smtpd_tls_key_file = /etc/pki/tls/private/smtpd.key smtpd_use_tls = yes smtpd_tls_session_cache_database = btree:${queue_directory}/smtpd_scache smtp_tls_session_cache_database = btree:${queue_directory}/smtp_scache canonical_maps = hash:/etc/postfix/canonical virtual_maps = hash:/etc/postfix/virtual sendmail_path = /usr/sbin/sendmail newaliases_path = /usr/bin/newaliases mailq_path = /usr/bin/mailq myhostname = www.mydomain.com alias_maps = hash:/etc/aliases alias_database = hash:/etc/aliases mydestination = hash:/etc/postfix/mydomains relayhost = smtp.comcast.net mynetworks = 127.0.0.0/8, 192.168.1.0/24 mynetworks_style = subnet mailbox_size_limit = 0 recipient_delimiter = + inet_interfaces = mailbox_command = procmail -a "$extension" inet_protocols = home_mailbox = maildir/ smtpd_sasl_type = dovecot smtpd_sasl_path = private/auth-client smtpd_sasl_auth_enable = yes smtpd_recipient_restrictions = permit_sasl_authenticated, permit_mynetworks, reject_unauth_destination
i guess there 2 issues here, telnet seems report ok connecting, sending mail domain fails.
and
can't send mail out.

appreciate help. hasn't given me problem since set on 5 years ago, stumped, , have tried every solution find on net...
not mention, stopped working, no "tinkering", no changes, on 27th of last month...

help?!

if need other files or information, please let me know.

the relay access denied fine..
have tried "mynetworks" locally server shell?

did upgraded on server?


Forum The Ubuntu Forum Community Ubuntu Specialised Support Ubuntu Servers, Cloud and Juju Server Platforms [ubuntu] Postfix/Dovecot Mail just stopped working on the 27th


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