{"id":8479,"date":"2016-10-24T03:24:15","date_gmt":"2016-10-24T02:24:15","guid":{"rendered":"https:\/\/wp.okra.host\/article\/mail-sent-via-127-0-0-1-rejects-with-relaying-denied\/"},"modified":"2021-03-07T14:25:31","modified_gmt":"2021-03-07T13:25:31","slug":"mail-sent-via-127-0-0-1-rejects-with-relaying-denied","status":"publish","type":"ht_kb","link":"https:\/\/kb.okra.host\/de\/article\/mail-sent-via-127-0-0-1-rejects-with-relaying-denied\/","title":{"rendered":"Mail sent via 127.0.0.1 rejects with \u201cRelaying Denied\u201d"},"content":{"rendered":"

\u00dcbersicht<\/h2>\n

Email that is sent over TCP via 127.0.0.1 or the server IP address is rejected with a “521: Relaying Denied” error message.<\/p>\n

Ursache<\/h2>\n

All email that passes through TCP must be authenticated with a SASL-compatible\u00a0username and password<\/a>, which is the login\/password used to access email on the server.<\/p>\n

L\u00f6sung<\/h2>\n

SASL authentication is necessary to track abuse and prevent unauthenticated users from relaying mail over TCP that the\u00a0SMTP service cannot trace the initiating UID. Mail that passes through sendmail, for example through the PHP mail()<\/a> command, do not carry this requirement as the UID and originating script are logged.<\/p>\n

Authentication\u00a0Settings<\/h3>\n

PHPMailer<\/h4>\n
$mail<\/span> =<\/span> new<\/span> PHPMailer<\/span>;<\/span>\r\n\r\n$mail<\/span>-><\/span>isSMTP();                                      \/\/ Set mailer to use SMTP<\/span><\/span>\r\n$mail<\/span>-><\/span>Host<\/span> =<\/span> '127.0.0.1<\/span>'<\/span><\/span>;                            \/\/ Specify main and backup SMTP servers<\/span><\/span>\r\n$mail<\/span>-><\/span>SMTPAuth<\/span> =<\/span> wahr<\/span>;                               \/\/ Enable SMTP authentication<\/span><\/span>\r\n$mail<\/span>-><\/span>Username<\/span> =<\/span> '<\/span>user@example.com'<\/span><\/span>;                 \/\/ SMTP username<\/span><\/span>\r\n$mail<\/span>-><\/span>Password<\/span> =<\/span> '<\/span>secret'<\/span><\/span>;                           \/\/ SMTP password<\/span><\/span>\r\n$mail<\/span>-><\/span>SMTPSecure<\/span> =<\/span> '<\/span>tls'<\/span><\/span>;                            \/\/ Enable TLS encryption, `ssl` also accepted<\/span><\/span>\r\n$mail<\/span>-><\/span>Port<\/span> =<\/span> 587<\/span>;                                    \/\/ TCP port to connect to<\/span><\/span><\/pre>\n
WordPress<\/h4>\n
Use WP SMTP Mail<\/a> or continue to use WordPress’ built-in mailer without incident.<\/p>\n
Ruby on Rails<\/h4>\n
via config\/environments\/$RAILS_ENV.rb:<\/p>\n
\n
config.action_mailer.delivery_method = <\/code>:smtp<\/code><\/div>\n
config.action_mailer.smtp_settings = {<\/code><\/div>\n
\u00a0\u00a0<\/code>address:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/code>'127.0.0.1'<\/code>,<\/code><\/div>\n
\u00a0\u00a0<\/code>port:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/code>587<\/code>,<\/code><\/div>\n
\u00a0\u00a0<\/code>domain:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/code>'example.com'<\/code>,<\/code><\/div>\n
\u00a0\u00a0<\/code>user_name:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/code>'user@example.com'<\/code>,<\/code><\/div>\n
\u00a0\u00a0<\/code>password:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/code>'secret'<\/code>,<\/code><\/div>\n
\u00a0\u00a0<\/code>authentication:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/code>'plain'<\/code>,<\/code><\/div>\n
\u00a0\u00a0<\/code>enable_starttls_auto: <\/code>wahr<\/code>}<\/code><\/div>\n<\/div>\n
<\/div>\n
<\/div>\n
Siehe auch<\/h2>\n