[Dovecot] Disconnects with proxies / new facts

[Timo Sirainen]

On Sat, 2007-03-03 at 01:18 +0100, Michael Kress wrote:
> +OK Dovecot ready.
> u-ERR invalid command u
> s-ERR invalid command s
> e-ERR invalid command e
> r-ERR invalid command r
>  -ERR invalid command
> t-ERR invalid command t
> e-ERR invalid command e
> s-ERR invalid command s
> t-ERR invalid command t
> p-ERR invalid command p
> o-ERR invalid command o
> p-ERR invalid command p
> 
> -ERR invalid command

None of these come from Dovecot. It appears your proxy doesn't like the
POP3 client.

> What's strange (and that's why I think we're getting closer):
> I can't find your change in version's 1.0-3_48.rc25.at spec file!
> Version 0.99.12 is omitted! That's weird. And that exactly might be the 
> problem.
> I'm sure if I do the diff between 0.99.11 and 0.99.12, the patch doesn't 
> work on 1.0-3_48.rc25.at. Should I give it try anyways? Or is there 
> another solution?

No, the bug was fixed another way in 1.0rcs.

> 00:48:57.943016 writev(7, [{"+OK Dovecot ready.", 18}, {"\r\n", 2}], 2) = 20

Here Dovecot writes its ready message.

> 00:48:57.943211 poll([{fd=5, 
> events=POLLIN|POLLPRI|POLLERR|POLLHUP|POLLNVAL}, {fd=8, 
> events=POLLIN|POLLPRI|POLLERR|POLLHUP|POLLNVAL}, {fd=3, 
> events=POLLIN|POLLPRI|POLLERR|POLLHUP|POLLNVAL}, {fd=0, 
> events=POLLIN|POLLPRI|POLLERR|POLLHUP|POLLNVAL}, {fd=7, 
> events=POLLIN|POLLPRI|POLLERR|POLLHUP|POLLNVAL}], 5, 333) = 0
...

Then it waits..

> 00:49:08.817628 read(7, "", 4096)       = 0
> 00:49:08.817724 write(2, "\1IDisconnected: rip=84.165.113.5"..., 52) =
> 52
> 00:49:08.817888 close(7)                = 0

Then the client just disconnects.

So your problem has nothing to do with Dovecot itself, and it can't be
fixed in Dovecot side.
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