Relay mail through external SMTP server

jwbos

I’m trying to setup Mailcow and want to relay the outgoing mails to an external mail server (since I’m not able able to do all the needed DNS changes).
Under Admin, Configuration, Configuration & Details, tab Routing I add a sender-dependent transport (ie. smtp.hcc.net.nl:587 with corresponding username and password).
When I try to test it an error message is shown: No MX records for smtp.hccnet.nl:587 were found in DNS, skipping and using hostname as next-hop.

After closing the test dialog I get the message in a red box in the right hand corner:
An unknown error occured: Error Object ( [message:protected] => Class ‘PHPMailer’ not found [string:Error:private] => [code:protected] => 0 [file:protected] => /web/inc/ajax/transport_check.php [line:protected] => 79 [trace:Error:private] => Array ( ) [previous:Error:private] => )

What am I doing wrong?

MAGIC

Can you try to update your mailcow? Looks like its the same message like here: https://community.mailcow.email/d/168-connecting-to-amazon-ses

Also seems you need to use ‘hccnet.nl’ This has 3 MX records

diekuh

Si, please update. 🙂

Please use [smtp.bla.bla]:587 - that’s why it tries to resolve an MX, as Postfix does.

The transport is accepted anyway, you could ignore the error.

jwbos

Thank you for the replies: it’s working now!