As I am new to dovecot and sieve I am really happy to get it working in a straight forward way. Thanks for the documentation to whom it concerns.
Now I came to my limits with this failure messages in /home/rolf/.dovecot.sieve.log:
sieve: info: started log at Jun 25 20:22:54. error: msgid=1340648569.94073.YahooMailClassic@web190304.mail.sg3.yahoo.com: failed to store into mailbox 'INBOX': BUG: Unknown internal error.
with this messages in mail.info:
Jun 25 20:22:54 rolf14 postfix/smtpd[21674]: connect from localhost[127.0.0.1] Jun 25 20:22:54 rolf14 postfix/smtpd[21674]: 90898E0190: client=localhost[127.0.0.1] Jun 25 20:22:54 rolf14 postfix/cleanup[21669]: 90898E0190: message-id=1340648569.94073.YahooMailClassic@web190304.mail.sg3.yahoo.com Jun 25 20:22:54 rolf14 postfix/qmgr[21172]: 90898E0190: from=stephanie.otavy@live.com, size=5291, nrcpt=1 (queue active) Jun 25 20:22:54 rolf14 postfix/smtpd[21674]: disconnect from localhost[127.0.0.1] Jun 25 20:22:54 rolf14 dovecot: lda(rolf): Error: setegid(privileged) failed: Operation not permitted Jun 25 20:22:54 rolf14 dovecot: lda(rolf): Error: sieve: msgid=1340648569.94073.YahooMailClassic@web190304.mail.sg3.yahoo.com: failed to store into mailbox 'INBOX': BUG: Unknown internal error Jun 25 20:22:54 rolf14 dovecot: lda(rolf): Error: sieve: script /home/rolf/.dovecot.sieve failed with unsuccessful implicit keep (user logfile /home/rolf/.dovecot.sieve.log may reveal additional details)
I guess the mentioned mail is spam. However, does this tell about some wrong configuration or access rights? Any indication what to improve? I get such an error about every 6 minutes.