Title: Server security problem
Last modified: November 23, 2017

---

# Server security problem

 *  Resolved [rombo76](https://wordpress.org/support/users/rombo76/)
 * (@rombo76)
 * [8 years, 6 months ago](https://wordpress.org/support/topic/server-security-problem/)
 * Hi, I am experiencing a problem with the bounce detection.
    After going through
   the test, which is succesful, I click on the “Process bounce handling now” button,
   and I get this error:
 * SECURITY PROBLEM: insecure server advertised AUTH=PLAIN
 * I checked the settings and everething seems right, what can It be?
 * Thank you very much in advance for your help.

Viewing 4 replies - 1 through 4 (of 4 total)

 *  [tamim71](https://wordpress.org/support/users/tamim71/)
 * (@tamim71)
 * [8 years, 6 months ago](https://wordpress.org/support/topic/server-security-problem/#post-9717229)
 * Hi [@rombo76](https://wordpress.org/support/users/rombo76/),
 * Mailserver which you want to connect is not letting this plugin to connect and
   fetch emails.
    You have to try by changing these two option ->
 * set `Secure connection(SSL)` to **Yes**
    set `Self-signed certificates` to **
   Yes**
 * see if that works. Also you can try changing `Connection method` to `pop3` and
   set proper **port** number. Let me know the result.
 * Thanks
 *  Thread Starter [rombo76](https://wordpress.org/support/users/rombo76/)
 * (@rombo76)
 * [8 years, 6 months ago](https://wordpress.org/support/topic/server-security-problem/#post-9717369)
 * Hi tanim71,
 * thanks for you help. No, I tried but:
    – If I change the Secure connection (SSL)
   to Yes I get an error on the test; – If I change the Self-signed certificates
   to Yes nothing changes.
 * I also tried with pop3, all the same. The port is 143, as stated by the provider…
 *  [tamim71](https://wordpress.org/support/users/tamim71/)
 * (@tamim71)
 * [8 years, 6 months ago](https://wordpress.org/support/topic/server-security-problem/#post-9717656)
 * Hi [@rombo76](https://wordpress.org/support/users/rombo76/),
 * This is something related to Mail server provider. You can try connecting any
   free email service like `gmail / yahoo / live / outlook` to see if these are 
   working within installation.
 * Also, you can provide me here about your mail service provider name / url , so
   I can check what kinds of security parameter they expect when connecting via 
   imap / pop3.
 * Update:: if you are using any Mail software which integrated with out hosting
   server like `iRedMail / Dovecot / roundcube` please let me know.
 * Thanks
    -  This reply was modified 8 years, 6 months ago by [tamim71](https://wordpress.org/support/users/tamim71/).
 *  [tikwebtech](https://wordpress.org/support/users/ehsantikweb/)
 * (@ehsantikweb)
 * [8 years, 1 month ago](https://wordpress.org/support/topic/server-security-problem/#post-10145360)
 * [@rombo76](https://wordpress.org/support/users/rombo76/),
    I hope you found the
   solution to your problem in the new updated version.
 * Thank you

Viewing 4 replies - 1 through 4 (of 4 total)

The topic ‘Server security problem’ is closed to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/bounce-handler-mailpoet_cb522b.svg)
 * [Bounce Handler MailPoet 3](https://wordpress.org/plugins/bounce-handler-mailpoet/)
 * [Support Threads](https://wordpress.org/support/plugin/bounce-handler-mailpoet/)
 * [Active Topics](https://wordpress.org/support/plugin/bounce-handler-mailpoet/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/bounce-handler-mailpoet/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/bounce-handler-mailpoet/reviews/)

 * 4 replies
 * 3 participants
 * Last reply from: [tikwebtech](https://wordpress.org/support/users/ehsantikweb/)
 * Last activity: [8 years, 1 month ago](https://wordpress.org/support/topic/server-security-problem/#post-10145360)
 * Status: resolved