Please contact your company or the people responsible for your company email. Roundcube is a web based mail client, it is not doing any forwarding.

You might be able to manage the rules from in Roundcube but this is being doing via a plugin and only your mail admins will know the details of what is possible.

I can not find a copy of the email left on RoundCube when forwarding an email. I need to reply using a company email account so they have a record of it. This is not my main company, so I want to be notified on my Gmail account whenever an email comes into the company account. I want the option to leave the forwarded email on RoundCube.

Another solution would be to send a notification to my Gmail account when certain "From" people send an email. I do not want an email every time PayPal sends a transaction notice. The notification would be more useful if it included the header and body of the original message.

The problem is solved, I fixed it.

Look at these files I uploaded and maybe there is something that can solve the problems, I don't know much about it, but Mail Server 7.3.3 seems to receive and send messages normally. Emails

Postfix files

main(4).cf

master(3).cf 
 
AND
dovecot
10-master(2).conf
10-ssl(2).conf 
 

defaults.inc.php

config.inc.php 
 
how to fix this problem ?

Connection to the storage server failed.

I offer consulting services if you want me to work on your server. You can contact me through my site if your interested where we can discuss scope and pricing.

Otherwise feel free to post what issues your running into here.

First I highly recommend using a newer PHP version, PHP 5.6 hasn't been support since 2018 and shouldn't be used anymore.

If you have to use PHP 5.6 that last branch of Roundcube that support PHP 5.6 is the 1.5.x branch its still available as an LTS.