[svlug] stunnel to gmail

Romain Kang romain at kzsu.stanford.edu
Mon Sep 27 15:34:14 PDT 2010


Hi Joe,

I don't know MH/NMH, but could it work to use fetchmail to pull
down messages via IMAP/S or POP3/S, then feed them to slocal?

Romain

On Tue, Sep 21, 2010 at 02:00:36PM -0700, Joe Brenner wrote:
> 
> I'm an mh user running ubuntu jaunty, and I want to get my local
> email working over POP3/SMTP SSL connections to a gmail account.
> So I'm trying to get mh (probably nmh, but gnu mailutils would be
> okay) to talk over SSL using stunnel.
> 
> I've suceeded in using slypheed to get mail from gmail, so I know the
> gmail account is working and is set-up for pop3 and so on.  When I
> run inc, though, it just hangs on me and then reports "inc: no mail
> to incorporate".
> 
> I can see that I've got stunnel running:
>   ps ax | egrep stun | egrep -v egrep
>   6534 ?        Ss     0:00 /usr/bin/stunnel4 /etc/stunnel/stunnel.conf
> 
> I'm looking for suggestions on what I might be doing wrong, and
> hints on how to go about isolating the problems.
> 
> Here's a summary of the kind of configurations I've been trying:
> 
> /etc/nmh/mts.conf:
> 
>    # mts: sendmail
>    mts: smtp
> 
>    hostable: /etc/nmh/hosts
> 
>    localname: smtp.gmail.com
>    # localname: gmail.com
> 
>    masquerade:
> 
>    mmdfldir: /var/mail
>    mmdflfil:
> 
>    pophost: pop.gmail.com
>    # pophost: localhost
> 
>    # servers: localhost
>    servers: smtp.gmail.com
> 
> 
> /etc/default/stunnel4
> 
>   # Change to one to enable stunnel
>   # ENABLED=0
>   ENABLED=1
>   FILES="/etc/stunnel/*.conf"
>   OPTIONS=""
> 
>   PPP_RESTART=0
> 
> 
> /etc/stunnel/stunnel.conf
> 
>   sslVersion = SSLv3
> 
>   chroot = /var/lib/stunnel4/
>   setuid = stunnel4
>   setgid = stunnel4
>   pid = /stunnel4.pid
> 
>   socket = l:TCP_NODELAY=1
>   socket = r:TCP_NODELAY=1
> 
>   debug = 7
>   output = /var/log/stunnel4/stunnel.log
> 
>   client = yes
> 
>   [pop3s]
>   accept = 127.0.0.1:1109
>   connect = pop.gmail.com:995
> 
>   [imaps]
>   accept  = 993
>   connect = 143
> 
>   [smtps]
>   accept = 127.0.0.1:259
>   connect = smtp.gmail.com:465
> 
> 
> /var/log/stunnel4/stunnel.log
> 
> 2010.09.21 11:11:41 LOG7[6528:140533218399984]: Snagged 64 random bytes from /dev/urandom
> 2010.09.21 11:11:41 LOG7[6528:140533218399984]: RAND_status claims sufficient entropy for the PRNG
> 2010.09.21 11:11:41 LOG7[6528:140533218399984]: PRNG seeded successfully
> 2010.09.21 11:11:41 LOG7[6528:140533218399984]: SSL context initialized for service pop3s
> 2010.09.21 11:11:41 LOG7[6528:140533218399984]: SSL context initialized for service imaps
> 2010.09.21 11:11:41 LOG7[6528:140533218399984]: SSL context initialized for service smtps
> 2010.09.21 11:11:41 LOG5[6528:140533218399984]: stunnel 4.22 on x86_64-pc-linux-gnu with OpenSSL 0.9.8g 19 Oct 2007
> 2010.09.21 11:11:41 LOG5[6528:140533218399984]: Threading:PTHREAD SSL:ENGINE Sockets:POLL,IPv6 Auth:LIBWRAP
> 2010.09.21 11:11:41 LOG6[6528:140533218399984]: file ulimit = 1024 (can be changed with 'ulimit -n')
> 2010.09.21 11:11:41 LOG6[6528:140533218399984]: poll() used - no FD_SETSIZE limit for file descriptors
> 2010.09.21 11:11:41 LOG5[6528:140533218399984]: 500 clients allowed
> 2010.09.21 11:11:41 LOG7[6528:140533218399984]: FD 10 in non-blocking mode
> 2010.09.21 11:11:41 LOG7[6528:140533218399984]: FD 11 in non-blocking mode
> 2010.09.21 11:11:41 LOG7[6528:140533218399984]: FD 12 in non-blocking mode
> 2010.09.21 11:11:41 LOG7[6528:140533218399984]: SO_REUSEADDR option set on accept socket
> 2010.09.21 11:11:41 LOG7[6528:140533218399984]: pop3s bound to 127.0.0.1:1109
> 2010.09.21 11:11:41 LOG7[6528:140533218399984]: FD 13 in non-blocking mode
> 2010.09.21 11:11:41 LOG7[6528:140533218399984]: SO_REUSEADDR option set on accept socket
> 2010.09.21 11:11:41 LOG7[6528:140533218399984]: imaps bound to 0.0.0.0:993
> 2010.09.21 11:11:41 LOG7[6528:140533218399984]: FD 14 in non-blocking mode
> 2010.09.21 11:11:41 LOG7[6528:140533218399984]: SO_REUSEADDR option set on accept socket
> 2010.09.21 11:11:41 LOG7[6528:140533218399984]: smtps bound to 127.0.0.1:259
> 2010.09.21 11:11:41 LOG7[6534:140533218399984]: Created pid file /stunnel4.pid
> 
> 
> 
> /var/log/mail.log
> 
> Sep 21 13:40:32 fineline gnu-pop3d[15484]: Incoming connection opened
> Sep 21 13:40:32 fineline gnu-pop3d[15484]: connect from 127.0.0.1
> Sep 21 13:40:32 fineline gnu-pop3d[15484]: User `doomvox at gmail.com': nonexistent
> Sep 21 13:40:32 fineline gnu-pop3d[15484]: Session ended for no user
> 
> 
> 
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