Idézem/Quoting Michelle Konzack <linux4miche...@gmail.com>: > Good evening, > > I have contacted the abuse@ from an ISP, where a range of 8 IP adrresses > attacking my servers (on all protocols) and now I get this from my > courier: > > ----8<------------------------------------------------------------------ > This is a delivery status notification from mail.tamay-dogan.net, > running the Courier mail server, version 0.68.2. > > The original message was received on Fri, 27 Jan 2017 23:45:43 +0100 > from localhost (localhost [127.0.0.1]) > > --------------------------------------------------------------------------- > > UNDELIVERABLE MAIL > > Your message to the following recipients cannot be delivered: > > <ab...@cv.net>: > biscmail.cv.net [167.206.112.38]: > >>> STARTTLS > <<< 500 couriertls: connect: error:14094410:SSL > routines:SSL3_READ_BYTES:sslv3 alert handshake failure > > <hostmas...@cv.net>: > biscmail.cv.net [167.206.112.38]: > >>> STARTTLS > <<< 500 couriertls: connect: error:14094410:SSL > routines:SSL3_READ_BYTES:sslv3 alert handshake failure > > --------------------------------------------------------------------------- > > If your message was also sent to additional recipients, their delivery > status is not included in this report. You may or may not receive > other delivery status notifications for additional recipients. > > The original message follows as a separate attachment. > ----8<------------------------------------------------------------------ > > I have never gotten such error message. > > with the exception of TLS1 things which I have removed last year already > and for my understanding is, that SSLv3 was negotiated with <biscmail> > and failed. If I can not contact them by EMail I have to do an expensiv > long distance call. > > Any suggestions?
$ openssl s_client -connect biscmail.cv.net:25 -starttls smtp (my openssl is v1.0.2h) ... Cipher : RC4-MD5 ... Maybe RC4-MD5 is not supported by your Courier installation which very good. You may disable encryption in /etc/courier/esmtproutes cv.net:biscmail.cv.net /SECURITY=NONE All the best! SZÉPE Viktor https://github.com/szepeviktor/debian-server-tools/blob/master/CV.md -- +36-20-4242498 s...@szepe.net skype: szepe.viktor Budapest, III. kerület ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot _______________________________________________ courier-users mailing list courier-users@lists.sourceforge.net Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users
