Email sieve

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Revision as of 16:43, 8 December 2010 by Bramvonk (talk | contribs) (Added explanation for using Sieve in KMail)
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If one wants incoming mail to be sorted into folders automatically or to be filtered in some special way, one can use "Sieve" if one has the IMAP-server as incoming mailserver. The Sieve language is described in RFC3028. To put the sieve script on the mail server and activate it, use a mail program which supports sieve, e.g. KMail or Thunderbird with the sieve addon.

Using Sieve in KMail

After adding an account via the KMail's wizard (with settings found on), KMail must be told that the server supports Sieve. You can do this via Settings, Configure KMail, Accounts, Modify, Filtering, Server supports Sieve. After that, Sieve scripts kan be accessed via Settings, Manage Sieve Scripts.

Examples of Sieve-scripts

  • If some mail should be sorted automatically into an existing folder, one can use a script like:

require [ "fileinto", "include" ];
# Messages into folders.
if header :contains "X-VirusscanResult" "infected" {
        fileinto "INBOX.Virus";
if address :is ["From", "To"] [
        fileinto "INBOX.Symposium2008";
include "spam";
include "vacation";

If one wants to redirect all mail that remains after our spamfilter has done its job, one has to add after the include "spam"; line:

redirect "";