Can't send or receive external mail...

Discussion in 'Server Operation' started by dre361224, Dec 3, 2009.

  1. dre361224

    dre361224 New Member

    Hey there,

    I've been at this for a few days now and still no luck but I know I'm very close to getting it. I've searched the internet everywhere and couldn't seem to find anything. The thing is that I can't send or receive email externally. It works fine locally though.

    My setup is Ubuntu 8.04LTS with Postfix, Courier and squirrelmail. I tried sending an email to and from my hotmail email but it doesn't work. It returns and email to the hotmail account saying that it could not be delivered.

    Here's my main.cf file contents:

    Code:
    smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu)
    biff = no
    append_dot_mydomain = no
    readme_directory = no
    smtpd_tls_cert_file = /etc/postfix/ssl/smtpd.crt
    smtpd_tls_key_file = /etc/postfix/ssl/smtpd.key
    smtpd_use_tls = yes
    smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
    smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
    myhostname = drescnc.com
    alias_maps = hash:/etc/aliases
    alias_database = hash:/etc/aliases
    myorigin = /etc/mailname
    mydestination = drescnc.com, localhost.drescnc.com, localhost.localdomain, localhost
    relayhost =
    mynetworks = 127.0.0.0/8
    mailbox_command =
    mailbox_size_limit = 0
    recipient_delimiter = +
    inet_interfaces = all
    inet_protocols = all
    smtpd_sasl_local_domain =
    smtpd_sasl_auth_enable = yes
    smtpd_sasl_security_options = noanonymous
    broken_sasl_auth_clients = yes
    smtpd_sasl_authenticated_header = yes
    smtpd_recipient_restrictions = permit_sasl_authenticated,permit_mynetworks,reject_unauth_destination
    smtpd_tls_auth_only = no
    smtp_use_tls = yes
    smtp_tls_note_starttls_offer = yes
    smtpd_tls_CAfile = /etc/postfix/ssl/cacert.pem
    smtpd_tls_loglevel = 1
    smtpd_tls_received_header = yes
    smtpd_tls_session_cache_timeout = 3600s
    tls_random_source = dev:/dev/urandom
    home_mailbox = Maildir/
    Here are the last few lines of my mail.log file:
    Code:
    Dec  2 19:51:13 drescnc imapd: LOGOUT, user=dre361224, ip=[::ffff:127.0.0.1], headers=113, body=0, rcvd=294, sent=1290, time=0
    Dec  2 19:51:45 drescnc postfix/anvil[18341]: statistics: max connection rate 1/60s for (smtp:192.168.0.103) at Dec  2 19:44:46
    Dec  2 19:51:45 drescnc postfix/anvil[18341]: statistics: max connection count 1 for (smtp:192.168.0.103) at Dec  2 19:44:46
    Dec  2 19:51:45 drescnc postfix/anvil[18341]: statistics: max cache size 1 at Dec  2 19:44:46
    Dec  2 19:58:56 drescnc imapd: Connection, ip=[::ffff:127.0.0.1]
    Dec  2 19:58:56 drescnc imapd: LOGIN, user=dre361224, ip=[::ffff:127.0.0.1], port=[33300], protocol=IMAP
    Dec  2 19:58:56 drescnc imapd: LOGOUT, user=dre361224, ip=[::ffff:127.0.0.1], headers=0, body=0, rcvd=87, sent=391, time=0
    Dec  2 20:00:35 drescnc postfix/qmgr[15926]: 0EE161B61FA: from=<[email protected]>, size=736, nrcpt=1 (queue active)
    Dec  2 20:01:05 drescnc postfix/smtp[18442]: connect to mx4.hotmail.com[65.55.37.120]:25: Connection timed out
    Dec  2 20:01:35 drescnc postfix/smtp[18442]: connect to mx2.hotmail.com[65.55.37.120]:25: Connection timed out
    Dec  2 20:02:05 drescnc postfix/smtp[18442]: connect to mx2.hotmail.com[65.55.92.184]:25: Connection timed out
    Dec  2 20:02:35 drescnc postfix/smtp[18442]: connect to mx2.hotmail.com[65.54.188.94]:25: Connection timed out
    Dec  2 20:03:05 drescnc postfix/smtp[18442]: connect to mx2.hotmail.com[65.55.37.72]:25: Connection timed out
    Dec  2 20:03:05 drescnc postfix/smtp[18442]: 0EE161B61FA: to=<[email protected]>, relay=none, delay=881, delays=731/0.01/150/0, dsn=4.4.1, status=deferred (connect to mx2.hotmail.com[65.55.37.72]:25: Connection timed out)
    Any help would be very appreciated!

    Thank you for your time!

    Dre
     
  2. topdog

    topdog Active Member HowtoForge Supporter

    Your ISP may be blocking your outbound smtp connection, double check with them.
     
  3. dre361224

    dre361224 New Member

    Thanks for the quick response! I already checked with them and they claimed that they do not block any ports.
     
  4. dre361224

    dre361224 New Member

    Alright, so I did some progress on his since... Turns out I had my MX records set wrong... Now I receive mail fine externally. Although I still can't send mail from my server to external addresses... Any ideas?

    Thank you for your time!

    Dre
     
  5. falko

    falko Super Moderator ISPConfig Developer

  6. topdog

    topdog Active Member HowtoForge Supporter

    This is definitely a blocked port issue.

    Code:
    Dec  2 20:01:05 drescnc postfix/smtp[18442]: connect to mx4.hotmail.com[65.55.37.120]:25: Connection timed out
    Dec  2 20:01:35 drescnc postfix/smtp[18442]: connect to mx2.hotmail.com[65.55.37.120]:25: Connection timed out
    Dec  2 20:02:05 drescnc postfix/smtp[18442]: connect to mx2.hotmail.com[65.55.92.184]:25: Connection timed out
    Dec  2 20:02:35 drescnc postfix/smtp[18442]: connect to mx2.hotmail.com[65.54.188.94]:25: Connection timed out
    If it is not your service provider blocking the port, then it is your own firewall blocking u.

    Test using

    Code:
    telnet gmail-smtp-in.l.google.com 25
     
  7. dre361224

    dre361224 New Member

    Hmm think you're right. It doesn't seem to want to connect. I don't know of any firewalls on my system though...
     

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