[MlMt] Folders repeatedly being marked unavailable

[Benny Kjær Nielsen]

On 5 Aug 2015, at 16:20, Karl Erik Jessen wrote:

> I have a problem, (similar to the one described in the tread starting 
> here: 
> http://www.mail-archive.com/mailmate%40lists.freron.com/msg04306.htm)l 
> with one of my Google Apps accounts, on one of my Macs (only!):
>
> Suddenly all folders in the account goes "unavailable", after a few 
> (5-10 sec.) the account starts to sync, and the "unavailable" label 
> disappears one folder at a time, Repeating every 1-2 minutes.
>
> The sync schedule for this account is every 10 minutes.
>
> Is there a way to identify the offending message? (Assuming that the 
> theory from the above mentioned thread about a malformed message being 
> the cause of the ever repeated sync)

You can take the mailboxes within the account explicitly offline (using 
“Mailbox ▸ Take Offline”). Then take a few online and wait for 
them to sync before continuing. This might help you track down if a 
particular mailbox triggers the issue.

Some times a Gmail account can contain emails for which the server 
simply says NO when trying to fetch them, but this should trigger 
MailMate to politely ask to ignore the message(s). It's possible that 
this behavior is broken.

Recently I've seen an issue with iCloud for which the connection is 
simply cut when asking for a specific message. To make it even more 
weird, the problem seems to depend on which subserver handles the 
connection at Apple (turns out they are also not all identically 
configured). This problem made me revisit the code which handles such 
issues and I might have something for you to try out. I'll write to you 
about that off list -- hopefully within a few days.

-- 
Benny