getmail problem

[Harald Weis]

On Tue, Mar 17, 2015 at 07:43:02PM -0400, Stephen R Guglielmo wrote:
 > On Tue, 17 Mar 2015 13:16:29 +0100
 > Harald Weis <hawei at free.fr> wrote:
 > > On Fri, Mar 13, 2015 at 02:02:27PM -0400, Stephen R Guglielmo wrote:
 > >  > On Fri, 13 Mar 2015 17:06:59 +0100
 > >  > Harald Weis <hawei at free.fr> wrote:
 > >  > > What could be the cause for the following error message:
 > >  > > 
 > >  > > SimpleIMAPSSLRetriever:hawei at imap.free.fr:993:
 > >  > > getmail-hawei-rc: operation error (command: LOGIN => socket
 > >  > > error: EOF)
 > >  > 
 > >  > 
 > >  > It would be my first instinct to blame the remote server, but I
 > >  > don't want to jump to conclusions too quickly. You could run
 > >  > tcpdump (or wireshark if you want a GUI) to get more of an idea of
 > >  > what's causing it. I have used getmail with Gmail in the past
 > >  > through a cronjob and it's worked quite well. I assume you're
 > >  > using the latest version of getmail?
 > > 
 > > getmail version 4.46.0 seems alright.
 > > 
 > > Many thanks for your quick response.
 > > It took me some minutes to read the manpage...
 > > 
 > > tcpdump -X -r tcpdump.20150315 is a bit longer (6148 bytes).
 > > But I'm afraid you need to see the data as well.
 > > Also, I don't know whether it is safe to send the file on-list.
 > > So whether you like it or not :-) I'll send you the file.
 
 > I looked at the tcpdump file you sent me off-list. If you want to read
 > it yourself, you can install Wireshark and open the file.

In fact, tcpdump is alright for me, it allows to read everything.
 
 > I'm not an expert, but it looks to me like your client (the 192.168 IP)
 > is sending a FIN packet (third line from the bottom). This is a request
 > to close the connection[1]. The remote system then sends a RST to reset
 > the connection.

No, the first FIN packet (sixth line from the bottom) is sent
by imap.free.fr.
I just checked that the first FIN packet was always sent by the server.
 
 > So it seems to be your end terminating the connection. It's quite
 > possible that it's something other than getmail itself (your local
 > router?) that is doing this for some reason. I'm not really sure where
 > to go from here; maybe somebody else can chime in to help.

I still don't know whether it's safe to send the whole file to the list.
 
 > [1]
 > https://en.wikipedia.org/wiki/Transmission_Control_Protocol#Connection_termination



-- 
Harald Weis