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.
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
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