[9front] Incoming mails disappearing

[9front] Incoming mails disappearing

[sirjofri]

Hello all,

For some time already I noticed that my incoming mails are sometimes 
disappearing from my inbox. They have enough time to show up on my phone 
(FairEmail client). First I thought it's only the mails I send to myself 
via cron (for people asking: calendar output and a todo file), but it 
just recently affected a mail I got from ori (who kindly sent the mail 
again so I can read it).

Here are some conditions for mails that are affected and also some 
details:

Only mails in my personal inbox (mbox directory) are affected. Mails that 
are filtered and go to a different directory (ahemm, mailing lists) were 
never removed from their directory.

I can see the mails arriving on my phone for a short amount of time (~1 
second) and it feels like I can open them when I click the notification 
fast enough. Sometimes however, I am just directed to my inbox directory 
and the mail is missing.

The mails are really removed, not just hidden from imap. I wasn't able to 
find the mails in the box directories, the queue or any tmp directory 
that's used while processing.

I might have a weird configuration somehow. Did someone else notice any 
similar issues? Any idea what might be wrong?

Using upas for years now and the issue wasn't bad for me personally until 
a day ago when ori sent me that mail...

sirjofri

Re: [9front] Incoming mails disappearing

[ori]

Quoth sirjofri <sirjofri+ml-9front@sirjofri.de>:
> Hello all,
> 
> For some time already I noticed that my incoming mails are sometimes 
> disappearing from my inbox. They have enough time to show up on my phone 
> (FairEmail client). First I thought it's only the mails I send to myself 
> via cron (for people asking: calendar output and a todo file), but it 
> just recently affected a mail I got from ori (who kindly sent the mail 
> again so I can read it).
> 
> Here are some conditions for mails that are affected and also some 
> details:
> 
> Only mails in my personal inbox (mbox directory) are affected. Mails that 
> are filtered and go to a different directory (ahemm, mailing lists) were 
> never removed from their directory.
> 
> I can see the mails arriving on my phone for a short amount of time (~1 
> second) and it feels like I can open them when I click the notification 
> fast enough. Sometimes however, I am just directed to my inbox directory 
> and the mail is missing.
> 
> The mails are really removed, not just hidden from imap. I wasn't able to 
> find the mails in the box directories, the queue or any tmp directory 
> that's used while processing.
> 
> I might have a weird configuration somehow. Did someone else notice any 
> similar issues? Any idea what might be wrong?
> 
> Using upas for years now and the issue wasn't bad for me personally until 
> a day ago when ori sent me that mail...
> 
> sirjofri

The only thing I can think of here is an imap bug or a pipe
bug. What happens if you put a log message and early return
here:

	/sys/src/cmd/upas/imap4d/mbox.c:464: deletemsg(Box *box, Msgset *ms)

Re: [9front] Incoming mails disappearing

[sirjofri]

28.04.2022 16:27:49 ori@eigenstate.org:
> The only thing I can think of here is an imap bug or a pipe
> bug. What happens if you put a log message and early return
> here:
>
>     /sys/src/cmd/upas/imap4d/mbox.c:464: deletemsg(Box *box, Msgset 
> *ms)

I will try that. It's always hard to test things that work most of the 
time and only occasionally fail.

I'll report back. It can take a day or so since I only have two daily 
mails that almost reliably fail.

sirjofri

Re: [9front] Incoming mails disappearing

[sirjofri]

Hey all, reporting back,

28.04.2022 17:50:01 sirjofri <sirjofri+ml-9front@sirjofri.de>:
> I'll report back. It can take a day or so since I only have two daily 
> mails that almost reliably fail.

I recently did a full update of the server. I only do this every few 
months since the server runs stable.

After the last update I seem to receive all daily mails reliably, and can 
delete them manually like usual.

Ori, I didn't try the early return.

I hope the issue is fixed (for whatever reasons).

sirjofri