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email_smtp_secure is not honored on TLS-enabled servers #5314

rdnn opened this Issue Jan 5, 2017 · 0 comments


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rdnn commented Jan 5, 2017


Please read this information carefully.

GitHub issues is for feature requests or bugs, please do not post issues asking for help or how to do X, Y or Z.
You can use our irc channel ##librenms on freenode to ask questions or our community site.

  • Is your install up to date? Updating your install
    Please do not submit an issue if your install is not up to date within the last 24 hours or on a stable monthly release.
  • Please include all of the information between the ==================================== section of ./validate.php.
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Component | Version
--------- | -------
LibreNMS  | 036f411e138bff272a15e9b64b7df9f3e7bdedbb
DB Schema | 152
PHP       | 5.6.29
MySQL     | 5.6.34
RRDTool   | 1.6.0
SNMP      | NET-SNMP 5.7.3

The SMTPAutoTLS option needs to be set to false and passed to PHPMailer to prevent it from opportunistically using TLS even when 'email_smtp_secure' is not set.

Reference PHPMailer/PHPMailer#550 (comment)

rdnn added a commit to rdnn/librenms that referenced this issue Jan 5, 2017

@rdnn rdnn changed the title from SMTP Alerts Fail to email_smtp_secure is not honored on TLS-enabled servers Jan 7, 2017

rdnn added a commit to rdnn/librenms that referenced this issue Jan 10, 2017

@laf laf closed this Jan 10, 2017

@lock lock bot locked as resolved and limited conversation to collaborators May 18, 2018

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