add forwarding info (#283)

I also added info about issue with Rainloop.

See Disroot/Disroot-Project#503

Co-authored-by: meaz <meaz@disroot.org>
Reviewed-on: Disroot/Howto#283
Reviewed-by: Fede.- <fede@no-reply@disroot.org>

pages/02.tutorials/03.Email/03.Webmail/00.Migration/docs.en.md

@@ -19,7 +19,7 @@ page-toc:
 
 As of July 16th, 2022 the **Disroot** webmail solution is **Roundcube** while **SnappyMail** will be discontinued.
 
-Until June 1st, 2023 both webmail clients will be available to give everyone time to make the transition, after that date only Roundcube will be accesible.
+Until July 1st, 2023 both webmail clients will be available to give everyone time to make the transition, after that date only Roundcube will be accesible.
 
 Although you should not have any issues with the transition, we strongly suggest that you previously make a backup of your contacts. Below you will find a brief step-by-step guide to help you do it without problems.
 

pages/02.tutorials/03.Email/03.Webmail/01.Roundcube/02.settings/07.forwarding/docs.en.md

@@ -0,0 +1,42 @@
+---
+title: "Forwarding"
+visible: true
+indexed: true
+updated:
+taxonomy:
+    category:
+        - docs
+    tags:
+        - webmail
+page-toc:
+    active: true
+---
+
+# Forwarding
+
+Here you can forward your emails to another email address.
+
+1. Choose between **Send copy to** or **Redirect to** and indicate the email to forward to.
+2. **Status**: set it to on or off, depending you want to activate the forwarding or desactivate it.
+3. **Save**.
+
+![Forwarding](en/forwarding.png)
+
+
+# Issue with switch from Rainloop to Roundcube
+
+Users that set a forwarding email in Rainloop will have an issue with Roundcube. To fix it:
+
+![Filters access](en/rainloop01.png)
+
+1. Go to [Disroot webmail](https://webmail.disroot.org)
+2. Navigate to **Settings**, then **Filters**.
+3. You should see **rainloop.user**. That is a set of filters set from Rainloop. You should also see different filters (like in *#1* or *#2* in the screencapture). If you click on those filters you'll see that they're a bit messed up. So the simpliest is to remove those and recreate them from Roundcube!
+
+![Filters removal](en/rainloop02.png)
+To remove this **rainloop.user** set of filters:
+
+1. Right click on **rainloop.user** set of filters.
+2. Choose **Delete filter set** and confirm that you want to delete this.
+
+You can now add a new forwarding as explained previously.

pages/02.tutorials/03.Email/03.Webmail/01.Roundcube/02.settings/docs.en.md

@@ -33,4 +33,5 @@ page-toc:
 
 ## [04. Responses](04.responses)
 ## [05. Filters](05.filters)
-## [06. Account details](06.account_details)
+## [06. Account details](06.account_details)
+## [07. Forwarding](07.forwarding)