You do not want to do that because that can create loops.
> -----Original Message----- > I don't want dovecot to wait X days before sending out another vacation > response. However, setting the :days to "0" doesn't work. > > RFC https://www.rfc-editor.org/rfc/rfc5230.html#section-4.1 says: > > 4.1. Days Parameter > > The ":days" argument is used to specify the period in which > addresses > are kept and are not responded to, and is always specified in days. > The minimum value used for this parameter is normally 1. Sites MAY > define a different minimum value as long as the minimum is greater > than 0. Sites MAY also define a maximum days value, which MUST be > greater than 7, and SHOULD be greater than 30. > > If ":days" is omitted, the default value is either 7 or the minimum > value (as defined above), whichever is greater. > > > If the parameter given to ":days" is less than the minimum value, > then the minimum value is used instead. > > If ":days" exceeds the site-defined maximum, the site-defined > maximum > is used instead. > > Sorry if this is more of a sieve question and is slightly off topic.