If you want to forward to multiple email addresses using ISPConfig and decide to keep or remove the copy of the email, you would think that you would use the “Email Forward” section. Unfortunately you can only forward to a single email. On a few forums I read from moderators to create two separate forwards – ISPConfig allows you to do this, but when you try to send an email only one of the forwards will be sent. EDIT: I just tried this again, maybe I had a typo on the second email address but it did work creating two separate forwards, the following will give you more control and allow you to set up your Gmail account to Send mail as, “add another email address you own”

Instead to forward to multiple email addresses you must goto:

1. Email
2. Email Accounts
3. Email Mailbox
4. Add new Mailbox
   Enter the email Alias, password, DO NOT enter anything into the “Send copy to” field. I also disabled IMAP and POP3.
5. Go to the Custom Rules tab and enter:
   

   redirect "name1@gmail.com";
   
   redirect "name2@gmail.com";
   
   stop;

6. The stop; line will prevent ISPConfig mail from saving a copy, you can remove it if you want to keep a local copy.

Edit: I did find out that creating multiple forwards does work, but I think the above is more flexible. One of the important parts about setting it up this way is that it allows you to set up Gmail “Send mail as” “add another email address you own” because it requires SMTP credentials.

I’m sure that you can use the Send copy to field, but I’m not sure if you can still put the “stop;” to prevent the local copy or if it would stop everything – even the forwards from going out?

Sites & Research:

• http://kruno.husak.me/2014/06/forwarding-mail-in-ispconfig-3-without-leaving-copy/