Help & How-to

Mail filters (server-side)


Mail filters run on our server when a message arrives, before it reaches your mail program. They work with every client (Thunderbird, Outlook, webmail, phone) even when your computer is off.
With a filter you can move messages to a folder, forward them, delete them or keep them in the Inbox.

Where to manage your filters
Log in to the reserved area with your email address and its password, then open Mail filters in the left menu (direct link: Mail filters).
Each mailbox manages its own filters. If you had created filters with SquirrelMail, you will find them there already, with the same behaviour.

 

The list of rules in Mail filters

 


Create a rule

  1. Click Add rule and give the rule a name.
  2. Choose Apply when: "all conditions are true" or "at least one condition is true".
  3. Add one or more conditions (see the list below). Tick not to reverse a condition.
  4. Choose the action: Move to folder, Forward to, Delete or Keep in Inbox.
  5. Optional: Also keep a copy in the Inbox and Stop here: do not check the following rules.
  6. Click OK, then Save filters. Nothing changes until you save.

Rules are checked from the top. Use the arrows to change the order.
For folders use "/" for subfolders, e.g. Work/Projects. A folder that does not exist is created for you and appears in your mail program within a few minutes.

 

Editing a rule: forward a copy to a colleague

 


Available conditions

  • From, To or Cc: "contains (name or address)", "address contains", "is", "matches (* and ?)".
  • Subject and Other header (any header name): "contains", "is", "matches".
  • Envelope sender (Return-Path).
  • Spam: the message was marked as spam by our antispam.
  • Virus: the antivirus found a virus.
  • Has attachments.
  • Spam level at least N (1-50): useful to delete only very obvious spam.
  • Every message: for example to forward all mail to another address.

 


The Spam rule
When a mailbox has active filters, spam is not moved to the Junk folder automatically. For this reason, the first time you open Mail filters the page suggests the rule Spam → Move to folder Junk, stop here: keep it at the top of the list.
If no active rule handles spam, the page shows a yellow warning.

A message is marked as spam only when its spam score is above the threshold of your mailbox (see Antispam).

 


Examples

  • Invoices to a folder: Subject contains "invoice" → Move to folder Invoices.
  • A customer's mail to a folder: From address contains "@customer.com" → Move to folder Customers/Customer.
  • Copy to a colleague: To or Cc contains "orders@yourdomain.com" → Forward to a colleague, with Also keep a copy in the Inbox.
  • Delete obvious spam: Spam level at least 25 → Delete (put it above the Spam rule).
  • Attachments to a folder: Has attachments → Move to folder Attachments.

To check a rule, send yourself a message that matches it and look in the destination folder.

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