On Thu, 13 Oct 2011 09:44:59 +0200
mirr...@gmail.com articulated:
> 2011/10/12 Wietse Venema <wie...@porcupine.org>
>
> > mirr...@gmail.com:
> > > Good morning,
> > >
> > > may I ask you for advice with a three beginner questions? I am
> > > new to postfix, and I do not want to catch bad habits early on..
> > >
> > > 1) I was surprised, that when I install postfix as "internet
> > > computer",
> > it
> > > switches on TSL support. Postfix generates certifikate and key in
> >
> > Postfix does not turn on TLS. Perhaps some distributor believes
> > they know better, and have turned it on for you.
> >
> > > 2) I comment out TSL in main.cf and telnet from one of my client
> > computers
> > > (lets call it "PC1", Windows XP and default telnet). Connections
> > > was
> > closed
> > > immediately with error 421. In mail.log it was always the same...
> >
> > Please see the mailing list welcome message for how to report
> > a problem with Postfix.
> >
> > Wietse
> >
> Gm, thank you for reply
>
> ad 1) Thank you for the explanation.
>
> ad 2) Unfortunately, I have read it. In a whole sentence:
>
> Oct 11 18:59:24 none postfix/smtpd[1754]: connect from
> unknown[x.x.x.x] Oct 11 18:59:24 none postfix/smtpd[1754]: lost
> connection after EHLO from unknown[x.x.x.x]
> Oct 11 18:59:24 none postfix/smtpd[1754]: disconnect from
> unknown[x.x.x.x]
>
> Oct 11 19:00:53 none postfix/smtpd[1754]: connect from
> unknown[x.x.x.x] Oct 11 19:00:53 none postfix/smtpd[1754]: lost
> connection after EHLO from unknown[x.x.x.x]
> Oct 11 19:00:53 none postfix/smtpd[1754]: disconnect from
> unknown[x.x.x.x]
>
> ...and there is part, which makes problem, after being commented out:
>
> # smtpd_tls_cert_file = /etc/ssl/certs/ssl-cert-snakeoil.pem
> # smtpd_tls_key_file = /etc/ssl/private/ssl-cert-snakeoil.key
> # smtpd_tls_session_cache_database =
> btree:${data_directory}/smtpd_scache #
> smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
> # smtpd_use_tls = yes
>
> ...rest of main.cf:
>
> allow_untrusted_routing = no
> append_dot_mydomain = no
> biff = no
> config_directory = /etc/postfix
> inet_interfaces = all
> mailbox_size_limit = 0
> myhostname = xxx
> mynetworks = localhost
> myorigin = $myhostname
> readme_directory = no
> relayhost = smtp.xxx
> smtpd_banner = HELLO $myhostname
> smtpd_helo_required = yes
> virtual_alias_domains = abc.xxx
> virtual_alias_maps = hash:/etc/postfix/virtual
>
> Detailed description was in previous e-mail. To sum up: I comment out
> TLS, telnet connection from one computer always immediately ends with
> error 421, while second PC is connecting without any problem. I have
> tried rebooting, reconnecting - no change of situation. When I turn
> TLS on, connection is working again from both computers. (But first
> time I have not found any other solution than reinstalling postfix.
> Becose I got this error message also after changing TLS back.)
>
> I'm quite curious about what can cause this problem.
>
> Thx for help, M.
Please don't top post. It makes following this thread a lot harder than
necessary. In addition, try using plain ASCII text instead of HTML.
There is an option in GMail to do just that if you are using the web
interface. If not, please correct it at the MUA level.
You should check out: http://www.postfix.com/DEBUG_README.html, in
particular the "Reporting problems to postfix-users@postfix.org" near
the bottom. "Better, provide output from the postfinger tool. This can
be found at http://ftp.wl0.org/SOURCES/postfinger"; suggestion is quite
useful and might enlighten others as to what your problem truly is.
--
Jerry ✌
postfix-u...@seibercom.net
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