Not sending mail via sendmail

Question

linux

Working computer with Ubuntu 12.04. You need to test sending mail from PHP scripts. At the moment, the mail function returns 1, but the mail is not coming. The same when trying to send directly from the console.

a couple of entries from the logs
May 2 11:45:54 localhost sm-mta[16088]: r424it83016088: [email protected], size=5, class=0, nrcpts=1, msgid=<[email protected]>, proto=SMTP, daemon=MTA-v4, relay=localhost.localadmin [127.0.0.1] May 2 11:45:55 localhost sm-mta[16121]: STARTTLS=client, relay=gmail-smtp-in.l.google.com., version=TLSv1/SSLv3, verify=FAIL, cipher=ECDHE-RSA-RC4-SHA, bits=128/128 May 2 11:45:55 localhost sm-mta[16121]: r424it83016088: [email protected], delay=00:00:12, xdelay=00:00:01, mailer=esmtp, pri=120005, relay=gmail-smtp-in.l.google.com. [173.194.71.26], dsn=5.0.0, stat=Service unavailable May 2 11:45:56 localhost sm-mta[16121]: r424it83016088: r424ju83016121: DSN: Service unavailable May 2 11:46:26 localhost sm-mta[16121]: r424ju83016121: [email protected], delay=00:00:30, xdelay=00:00:30, mailer=esmtp, pri=30000, relay=test.com. [174.36.85.72], dsn=4.0.0, stat=Deferred: 451 smtp2.omkc.ru Connection timeout [174.36.85.72]
May 2 11:32:45 localhost sm-mta[15526]: r424U57U015526: [email protected], size=5, class=0, nrcpts=1, msgid=<[email protected]>, proto=SMTP, daemon=MTA-v4, relay=localhost.localadmin [127.0.0.1] May 2 11:32:46 localhost sm-mta[15615]: STARTTLS=client, relay=gmail-smtp-in.l.google.com., version=TLSv1/SSLv3, verify=FAIL, cipher=ECDHE-RSA-RC4-SHA, bits=128/128 May 2 11:33:16 localhost sm-mta[15615]: r424U57U015526: [email protected], delay=00:00:50, xdelay=00:00:31, mailer=esmtp, pri=120005, relay=gmail-smtp-in.l.google.com. [74.125.143.26], dsn=5.0.0, stat=Service unavailable May 2 11:33:16 localhost sm-mta[15615]: r424U57U015526: r424XG7U015615: DSN: Service unavailable May 2 11:33:17 localhost sm-mta[15615]: STARTTLS=client, relay=aspmx.l.google.com., version=TLSv1/SSLv3, verify=FAIL, cipher=ECDHE-RSA-RC4-SHA, bits=128/128 May 2 11:33:48 localhost sm-mta[15615]: r424XG7U015615: [email protected], delay=00:00:32, xdelay=00:00:32, mailer=esmtp, pri=30000, relay=aspmx.l.google.com. [173.194.71.26], dsn=5.0.0, stat=Service unavailable May 2 11:33:48 localhost sm-mta[15615]: r424XG7U015615: r424XG7V015615: return to sender: Service unavailable May 2 11:33:48 localhost sm-mta[15615]: r424XG7V015615: to=root, delay=00:00:00, xdelay=00:00:00, mailer=local, pri=30000, dsn=2.0.0, stat=Sent

, as far as I understand, the problem is in SSL / TLS. Tell me what and how to set up.

Answer 1

Are you trying to raise MTA on your home machine without a reverse resolve, valid certificates, and in general you have a hostname, as you can see from the localhost.localdomain logs? Nothing will work in our spammer-filled time. For most mail servers, especially gmail, you are a pure spammer with this configuration. Use ssmtp or something similar and smtp server provider or gmyla.

Answer 2

Use Mandrill - easier and more reliable.

Answer 3

Check /var/mail

Answer 4

Check if the ports used to send mail are blocked

Answer 5

You can configure SMTP Relay. Register a gmail account and configure sendmail so that all your mail from the work machine goes through this account. should be enough for testing.