Getting server to send mail

[CharlesA]

Yes. Your config is all wrong.

Server should be localhost
Port 25
No encryption
No authentication

Also: Be sure to set postfix to only listen to 127.0.0.1 by adding this to main.cf:

inet_interfaces = 127.0.0.1

You should still verify your server is not on any blacklists otherwise you will likely have sporadic mail delivery.

[micahpage]

changed inet_interfaces, restart postfix, changed smtp config on wordpress to localhost:25, tried to send a test email to metulburr@gmail.com and this is the new error i get. There doesnt seem to be a lot of information on the error.

object(PHPMailer)#413 (73) {  ["Version"]=>
  string(6) "5.2.10"
  ["Priority"]=>
  int(3)
  ["CharSet"]=>
  string(10) "iso-8859-1"
  ["ContentType"]=>
  string(10) "text/plain"
  ["Encoding"]=>
  string(4) "8bit"
  ["ErrorInfo"]=>
  string(0) ""
  ["From"]=>
  string(14) "root@localhost"
  ["FromName"]=>
  string(9) "Root User"
  ["Sender"]=>
  string(0) ""
  ["ReturnPath"]=>
  string(0) ""
  ["Subject"]=>
  string(0) ""
  ["Body"]=>
  string(0) ""
  ["AltBody"]=>
  string(0) ""
  ["Ical"]=>
  string(0) ""
  ["MIMEBody":protected]=>
  string(0) ""
  ["MIMEHeader":protected]=>
  string(0) ""
  ["mailHeader":protected]=>
  string(0) ""
  ["WordWrap"]=>
  int(0)
  ["Mailer"]=>
  string(4) "mail"
  ["Sendmail"]=>
  string(18) "/usr/sbin/sendmail"
  ["UseSendmailOptions"]=>
  bool(true)
  ["PluginDir"]=>
  string(0) ""
  ["ConfirmReadingTo"]=>
  string(0) ""
  ["Hostname"]=>
  string(0) ""
  ["MessageID"]=>
  string(0) ""
  ["MessageDate"]=>
  string(0) ""
  ["Host"]=>
  string(9) "localhost"
  ["Port"]=>
  int(25)
  ["Helo"]=>
  string(0) ""
  ["SMTPSecure"]=>
  string(0) ""
  ["SMTPAutoTLS"]=>
  bool(true)
  ["SMTPAuth"]=>
  bool(false)
  ["SMTPOptions"]=>
  array(0) {
  }
  ["Username"]=>
  string(0) ""
  ["Password"]=>
  string(0) ""
  ["AuthType"]=>
  string(0) ""
  ["Realm"]=>
  string(0) ""
  ["Workstation"]=>
  string(0) ""
  ["Timeout"]=>
  int(300)
  ["SMTPDebug"]=>
  bool(true)
  ["Debugoutput"]=>
  string(4) "echo"
  ["SMTPKeepAlive"]=>
  bool(false)
  ["SingleTo"]=>
  bool(false)
  ["SingleToArray"]=>
  array(0) {
  }
  ["do_verp"]=>
  bool(false)
  ["AllowEmpty"]=>
  bool(false)
  ["LE"]=>
  string(1) "
"
  ["DKIM_selector"]=>
  string(0) ""
  ["DKIM_identity"]=>
  string(0) ""
  ["DKIM_passphrase"]=>
  string(0) ""
  ["DKIM_domain"]=>
  string(0) ""
  ["DKIM_private"]=>
  string(0) ""
  ["action_function"]=>
  string(0) ""
  ["XMailer"]=>
  string(0) ""
  ["smtp":protected]=>
  NULL
  ["to":protected]=>
  array(0) {
  }
  ["cc":protected]=>
  array(0) {
  }
  ["bcc":protected]=>
  array(0) {
  }
  ["ReplyTo":protected]=>
  array(0) {
  }
  ["all_recipients":protected]=>
  array(0) {
  }
  ["attachment":protected]=>
  array(0) {
  }
  ["CustomHeader":protected]=>
  array(0) {
  }
  ["lastMessageID":protected]=>
  string(0) ""
  ["message_type":protected]=>
  string(0) ""
  ["boundary":protected]=>
  array(0) {
  }
  ["language":protected]=>
  array(0) {
  }
  ["error_count":protected]=>
  int(0)
  ["sign_cert_file":protected]=>
  string(0) ""
  ["sign_key_file":protected]=>
  string(0) ""
  ["sign_extracerts_file":protected]=>
  string(0) ""
  ["sign_key_pass":protected]=>
  string(0) ""
  ["exceptions":protected]=>
  bool(true)
  ["uniqueid":protected]=>
  string(0) ""
}

I tried mxtoolbox but i get an error saying its unable to connect to my server
http://imgur.com/SEZR62P

[CharlesA]

If you are going to be using mxtoolbox, you would need to set postfix to listen on all interfaces instead of only on 127.0.0.1.

I told you to set it that way so no one from the outside could use your server as a relay (even tho if isn't set up to allow that atm).

On the bright side, the IP in your screenshot isn't blacklisted anywhere.

[micahpage]

i reverted the inet_address to all and got OK for all lists.

[CharlesA]

That error just looks like garbage to me. Can you get a screenshot?

[micahpage]

I used a plugin in wordpress to aid with smtp. After configuring that, and granting permissions with google, i am successfully sending email verifications.
the plugin was
https://wordpress.org/plugins/postman-smtp/

Is this using my server, and the settings i changed through this thread? OR is it bypassing and using my gmail account to send emails? I am assuming the latter as the email was from my gmail and not python-gaming@python-gaming.com? I am not sure but my end goal is complete by sending email verification to new users.

[CharlesA]

It looks to be sending the mail thru your gmail, which is likely not what you want.

I don't use wordpress, so I don't know what that plugin is supposed to do.

[micahpage]

I definitely did not want to use wordpress. But i could not find software that allowed users to register on your site, create an account, and make their own page within a subdirectory of your site. Is there any other software that would do that?

[CharlesA]

I don't know. I don't use any CMS for my website.

Personally, I would suggest setting up a test server (maybe locally?) and make sure you have postfix working correctly before even touching the CMS.

Might be a good idea and start from scratch instead of following that howto you found on the Ubuntu help pages.

[micahpage]

OK thank you for the help.