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I just set up postfix on the server but emails could not be received. Question Question
Migrating a website and email over to DigitalOcean Question Question

Question

can not send any email from postfix

Posted September 16, 2015 60.7k views
UbuntuEmailDigitalOcean

Someone can help me? I have no idea why i not able to send any email, only receive.

i am using ubuntu servere with postfix and mail tool

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sharkguto
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sharkguto

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I just set up postfix on the server but emails could not be received. Question Question
Migrating a website and email over to DigitalOcean Question Question

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2 answers
ForYourIT September 16, 2015

To help you in any way, you need to give some information. You can’t ask; “My potatoe doesn’t fit, what to do?”
Check logs, post your configs, check if you get any returns, check your ports, etc.

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  • sharkguto September 18, 2015

    sorry buddy,

    from postfix:
    Sep 6 06:47:49 gmf-tech postfix/smtp[7867]: connect to alt2.gmail-smtp-in.l.google.com[74.125.24.26]:25: Connection timed out
    Sep 6 06:47:49 gmf-tech postfix/smtp[7867]: 347CF124152: to=freitasmgustavo@gmail.com, relay=none, delay=288108, delays=288018/0.01/90/0, dsn=4.4.1, status=deferred (connect to alt2.gmail-smtp-in.l.google.com[74.125.24.26]:25: Connection timed out)
    Sep 6 06:47:49 gmf-tech postfix/smtp[7865]: DC0EC124151: to=freitasmgustavo@gmail.com, relay=none, delay=288110, delays=288019/0.01/90/0, dsn=4.4.1, status=deferred (connect to alt2.gmail-smtp-in.l.google.com[74.125.24.27]:25: Connection timed out)
    Sep 6 06:51:19 gmf-tech postfix/qmgr[1064]: CAF4D124139: from=gustavo@gmf-tech.com, size=380, nrcpt=1 (queue active)
    Sep 6 06:51:19 gmf-tech postfix/qmgr[1064]: C9ABB12413F: from=gustavo@gmf-tech.com, size=380, nrcpt=1 (queue active)
    Sep 6 06:51:19 gmf-tech postfix/error[7991]: CAF4D124139: to=freitasmgustavo@gmail.com, relay=none, delay=292382, delays=292382/0.01/0/0.01, dsn=4.4.1, status=deferred (delivery temporarily suspended: connect to alt2.gmail-smtp-in.l.google.com[74.125.24.27]:25: Connection timed out)
    Sep 6 06:51:19 gmf-tech postfix/error[7992]: C9ABB12413F: to=freitasmgustavo@gmail.com, relay=none, delay=292379, delays=292379/0.01/0/0, dsn=4.4.1, status=deferred (delivery temporarily suspended: connect to alt2.gmail-smtp-in.l.google.com[74.125.24.27]:25: Connection timed out)
    Sep 6 06:56:19 gmf-tech postfix/qmgr[1064]: DAA8B124129: from=gustavo@gmfinfo, size=325, nrcpt=1 (queue active)
    Sep 6 06:56:19 gmf-tech postfix/qmgr[1064]: D04EA12413D: from=gustavo@gmf-tech.com, size=380, nrcpt=1 (queue active)
    Sep 6 06:56:19 gmf-tech postfix/qmgr[1064]: 5843612413E: from=gustavo@gmf-tech.com, size=380, nrcpt=1 (queue active)
    Sep 6 06:56:19 gmf-tech postfix/qmgr[1064]: 607F4124131: from=gustavo@gmfinfo, size=336, nrcpt=1 (queue active)
    Sep 6 06:56:19 gmf-tech postfix/qmgr[1064]: 7CA74124130: from=gustavo@gmfinfo, size=334, nrcpt=1 (queue active)
    Sep 6 06:56:19 gmf-tech postfix/smtp[8001]: connect to gmail-smtp-in.l.google.com[2607:f8b0:400d:c04::1a]:25: Network is unreachable
    Sep 6 06:56:19 gmf-tech postfix/smtp[8002]: connect to gmail-smtp-in.l.google.com[2607:f8b0:400d:c04::1a]:25: Network is unreachable
    Sep 6 06:56:49 gmf-tech postfix/smtp[8003]: connect to mx3.hotmail.com[65.55.92.184]:25: Connection timed out
    Sep 6 06:56:49 gmf-tech postfix/smtp[8000]: connect to gmail-smtp-in.l.google.com[64.233.171.26]:25: Connection timed out
    Sep 6 06:56:49 gmf-tech postfix/smtp[8002]: connect to gmail-smtp-in.l.google.com[74.125.29.27]:25: Connection timed out
    Sep 6 06:56:49 gmf-tech postfix/smtp[8001]: connect to gmail-smtp-in.l.google.com[64.233.171.26]:25: Connection timed out
    Sep 6 06:56:49 gmf-tech postfix/smtp[8000]: connect to gmail-smtp-in.l.google.com[2607:f8b0:400d:c04::1a]:25: Network is unreachable
    Sep 6 06:56:49 gmf-tech postfix/smtp[8000]: connect to alt1.gmail-smtp-in.l.google.com[2800:3f0:4003:c00::1b]:25: Network is unreachable
    Sep 6 06:56:49 gmf-tech postfix/smtp[8004]: connect to gmail-smtp-in.l.google.com[74.125.29.27]:25: Connection timed out
    Sep 6 06:56:49 gmf-tech postfix/smtp[8004]: connect to gmail-smtp-in.l.google.com[2607:f8b0:400d:c04::1a]:25: Network is unreachable
    Sep 6 06:57:19 gmf-tech postfix/smtp[8003]: connect to mx2.hotmail.com[65.55.92.184]:25: Connection timed out

    sendmail:

    ctladdr=gustavo@gmf-tech.com (1000/1000), delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=60146, relay=[127.0.0.1] [127.0.0.1], dsn=4.0.0, stat=Deferred: Connection refused by [127.0.0.1]
    ctladdr=gustavo@gmf-tech.com (1000/1000), delay=03:07:50, xdelay=00:10: 36, mailer=esmtp, pri=930284, relay=alt4.gmail-smtp-in.l.google.com. [173.194.65 .27], dsn=4.0.0, stat=Deferred: Connection timed out with alt4.gmail-smtp-in.l.g oogle.com.

    i have uninstall postfix and install sendmail, got the same error connection refused.

    I followed step by step this procedure https://www.digitalocean.com/community/tutorials/how-to-install-and-setup-postfix-on-ubuntu-14-04, without success…

    Can you help me?

    Regards

    Gustavo

    Reply Report
    • ForYourIT September 20, 2015

      No problem, but just always give information and details when you have a problem (easier to answer).

      A common cause is because of wrong IPv6 settings. You can either use IPv4, or correct your IPv6 settings. To use IPv4, edit the Postfix configuration file:

      nano /etc/postfix/main.cf

      and change inet_protocols = all to inet_protocols = ipv4 and restart or reload Postfix: /etc/init.d/postfix reload . Also flush the Postfix queue:

      postfix -f

      You can also solve the problem by setting up IPv6

      nano /etc/network/interfaces

      For example a IPv6 config:

      iface eth0 inet6 static
address 2a00:d880:0:10::xxxx:xxxx
netmask 64
gateway 2a00:d880:0:10::1
up ip -6 addr add 2a00:d880:0:10::xxxx:xxxx/64 dev eth0
up ip -6 addr add 2a00:d880:0:10::xxxx:xxxx/64 dev eth0
up ip -6 addr add 2a00:d880:0:10::xxxx:xxxx/64 dev eth0
up ip -6 addr add 2a00:d880:0:10::xxxx:xxxx/64 dev eth0

      Hope I give you enough information with this and you get it fixing, if not you can just ask me

      Reply Report
dunghuynh April 23, 2018

I still have errors after following the answer

The log is

Apr 23 05:10:52 atlantic postfix/error[30337]: 345C541BDC: to=xxx@xxx.com, relay=none, delay=433026, delays=432875/150/0/0, dsn=4.4.1, status=deferred (delivery temporarily suspended: connect to aspmx3.googlemail.com[209.85.145.26]:25: Connection timed out)
Apr 23 05:10:52 atlantic postfix/qmgr[30268]: 345C541BDC: from=xxx@xxx.com, status=expired, returned to sender
Apr 23 05:10:52 atlantic postfix/cleanup[30338]: BE6C041389: message-id=20180423091052.BE6C041389@atlantic.localdomain
Apr 23 05:10:52 atlantic postfix/qmgr[30268]: BE6C041389: from=<>, size=5228, nrcpt=1 (queue active)
Apr 23 05:10:52 atlantic postfix/bounce[30332]: 345C541BDC: sender non-delivery notification: BE6C041389
Apr 23 05:10:52 atlantic postfix/qmgr[30268]: 345C541BDC: removed
Apr 23 05:10:52 atlantic postfix/error[30335]: BE6C041389: to=xxx@xxx.com, relay=none, delay=0.02, delays=0.02/0/0/0, dsn=4.4.1, status=deferred (delivery temporarily suspended: connect to aspmx3.googlemail.com[209.85.145.26]:25: Connection timed out)

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