[Dovecot] transitional weirdnesses

[Eric S. Johansson]

1) not reproducible but when it occurred, its stuck: in the early transition to 
dovecot I would notice occasionally that messages would come up, I would delete 
them and then something would hang causing a major delay in the (Mozilla) e-mail 
client's response.  When the system responded, I would notice that occasionally 
there would be an off by one offset between the index of messages and the 
message displayed.  This error would persist until I killed off the index and 
the dovecot process.

2) very reproducible: after fetching messages from my inbox, there will be a 
long (30 sec.) delay.  Dovecot demon is clearly busy doing something.  I do have 
a large set of filter rules (approximately 150) sorting messages into different 
boxes.  Is this a reason to switch to maildir?

3) just ended up with a message that displayed the entire header.  Will look 
into this more but it's very strange.

---eric