New comment by Johnnynator on void-packages repository

https://github.com/void-linux/void-packages/issues/29739#issuecomment-808896145

Comment:
The problem was the missing sasl plugins. Added a hard dep of kimap to them now. (Also done like that in Debian)
https://github.com/void-linux/void-packages/commit/0e4d43b5ab7c13652fac5175b6e1be1650530551