Re: [courier-users] Management of maildir structures

2016-07-23 Thread Sam Varshavchik 

Lindsay Haisley writes:


On Sat, 2016-07-23 at 13:29 -0700, Gordon Messmer wrote:
> In this case, I think that "MUA" simply means "the process that's
> reading the mail dir."  In particular, it refers to Dovecot in the
> same paragraph.

Well you may be right, except that "mail user agent" in that paragraph
is a link to a Wikipedia article which is pretty specific that the term
refers to an "email client" or "email reader".

I think my assumption is a safe one.  Thanks.


I would agree that "MUA" refers to anything that reads a maildir, in the  
most liberal interpretation.


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Re: [courier-users] Management of maildir structures

2016-07-23 Thread Lindsay Haisley 
On Sat, 2016-07-23 at 13:29 -0700, Gordon Messmer wrote:
> In this case, I think that "MUA" simply means "the process that's
> reading the mail dir."  In particular, it refers to Dovecot in the
> same paragraph.

Well you may be right, except that "mail user agent" in that paragraph
is a link to a Wikipedia article which is pretty specific that the term
refers to an "email client" or "email reader".

I think my assumption is a safe one.  Thanks.

-- 
Lindsay Haisley   | "UNIX is user-friendly, it just
FMP Computer Services |   chooses its friends."
512-259-1190  |  -- Andreas Bogk
http://www.fmp.com|



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Re: [courier-users] Management of maildir structures

2016-07-23 Thread Ben Kennedy 
> On 23 Jul 2016, at 12:05 pm, Lindsay Haisley  wrote:
> 
> I've run into a couple of articles, including the Wikipedia article at
>  on maildirs which state that
> the internal management of files in the new, tmp and cur directories is
> the responsibility of the client's MUA ("When the mail user agent (MUA)
> process finds messages in the new directory it moves them to cur (using
> rename()"). This makes no sense.

Maybe it's just alluding to clients that deal in Maildirs on their local file 
system (e.g. pine or elm?*), whereas the same is also implied for pop3/imap 
services?

b

* (since it's been >10 years since I last used a remote command-line mail 
client I can't remember if those dealt in Maildirs or just mbox, but the idea 
stands)


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Re: [courier-users] Management of maildir structures

2016-07-23 Thread Gordon Messmer 

On 07/23/2016 12:05 PM, Lindsay Haisley wrote:

the Wikipedia article at
  on maildirs which state that
the internal management of files in the new, tmp and cur directories is
the responsibility of the client's MUA ("When the mail user agent (MUA)



In this case, I think that "MUA" simply means "the process that's 
reading the mail dir."  In particular, it refers to Dovecot in the same 
paragraph.


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[courier-users] Management of maildir structures

2016-07-23 Thread Lindsay Haisley 
I've run into a couple of articles, including the Wikipedia article at
 on maildirs which state that
the internal management of files in the new, tmp and cur directories is
the responsibility of the client's MUA ("When the mail user agent (MUA)
process finds messages in the new directory it moves them to cur (using
rename()"). This makes no sense. My impression has been that the
responsibility for managing the internal structures of maildirs lies
with the Mail Retrieval Agent, imapd or pop3d, on the server since the
IMAP and POP3 protocols deal with messages as entities and the storage
structure on the server is, or should be outside of MUA control.

This makes a difference here! I'm looking at customer accounts with a
substantial amount of mail in their "new" directories, and an equally
or more substantial amount in their "cur" directories. I've been
judging the date that mail was last checked by looking at the earliest
file date in the "new" directory, which generally corresponds closely
with the latest file date in the "cur" directory, so I can tell a
customer that a particular mailbox hasn't been checked since 2014, or
whenever. If management of the internal details of the maildir
structure is somehow the MUA's responsibility, then it's certainly
possible that a mailbox is in active use and is being accessed by an
ill-behaved MUA which isn't doing proper management.

Clarification?

-- 
Lindsay Haisley   | "UNIX is user-friendly, it just
FMP Computer Services |   chooses its friends."
512-259-1190  |  -- Andreas Bogk
http://www.fmp.com|



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