SMTP Connect Failed (Mailcow Server)

[mbh-dev]

Steps to reproduce the issue

Mail Settings Send Mail: Yes Disable Mass Mail: No From Email: user@domain.tld From Name: Name Reply To Email: Reply To Name: Mailer: SMTP Host: mail.domain.tld SMTP Port: 465 SMTP Security: SSL SMTP Authentication: Yes SMTP Username: user@domain.tld SMTP Password: ****

Expected result

Test email sent successfully

Actual result

Error Test mail could not be sent.

System information (as much as possible)

Joomla 3.9.18 Mail server located on separate machine

Additional comments

When trying to connect to Mailcow mail server, via all options possible, Joomla fails. Mail server is accessible from other CMS (WordPress) and direct connects via email clients, webmail and telnet. No logs on mail server of Joomla even trying to connect to it.

Extremely confused and require assistance, thanks.

I've tried troubleshooting using other forums and posts but none have helped.

[HLeithner]

Can you please activate debugging in the global configuration and try again? this should create a log file in administrator/logs

[toivo]

@mbh-dev please follow in detail the instructions you received yesterday how to debug SMTP mail in your forum topic at https://forum.joomla.org/viewtopic.php?f=708&t=980140. These problems are usually caused by firewalls at either end or issues with domain names and SSL certificates, rarely with Joomla. The SMTP transaction log will give us the full account what went on.

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_{This comment was created with the J!Tracker Application at issues.joomla.org/tracker/joomla-cms/29136.}

[brianteeman]

As there is an active forum thread for this it should be closed here. Thanks

[mbh-dev]

Following @HLeithner the error log shows the following:

[24-May-2020 14:07:31 UTC] PHP Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; plgSystemOfflajnJoomla3compat has a deprecated constructor in /home/xxxx/public_html/plugins/system/offlajnjoomla3compat/offlajnjoomla3compat.php on line 83 [24-May-2020 14:07:31 UTC] PHP Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; plgSystemDojoloader has a deprecated constructor in /home/xxxx/public_html/plugins/system/dojoloader/dojoloader.php on line 41 [24-May-2020 14:07:31 UTC] PHP Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; plgSystemOfflajnParams has a deprecated constructor in /home/xxxx/public_html/plugins/system/offlajnparams/offlajnparams.php on line 41

[toivo]

@mbh-dev those PHP Deprecated messages come from the third party plugin from Offlajn and they are not related to the SMTP connection issue. The active forum topic where you just posted new debug information a few minutes ago is the right place to continue. The issue was closed here four days ago because of that.

[HLeithner]

@mbh-dev if you provide an SMTP communication log it would be easier to solve the problem.

[toivo]

@HLeithner the SMTP log was provided to the forum topic at https://forum.joomla.org/viewtopic.php?f=708&t=980140#p3605241 and it shows the error "Connection refused (111)" - the ball is in the OP's court.

[HLeithner]

@toivo thanks I checked the forum but I missed the smtp log.... and you already answered it. @mbh-dev I would suggest to change the auth type to STARTTLS and port 25 or 587 and try again.