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dornauer@coop-himmelblau.

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Hello,

we got a ticket in our company, that a specific partner can't send any emails to our employees. After some test, we discovered that this is true in one way.

We can send emails to them, but they can't send emails to us.
They are using CommuniGate Pro 6.0.6 as Server and we have KMS 8.2.1 in use. It seems that SSL isn't functioning correct.

If I look in the Logs -> at other connections then if there is a similar problem, there is mostly a fall-back to a unsecured connection, but not in this case.

We get the emails now via Google Mail Crying or Very Sad .

Any suggestions or clues ?? That would be great.....

THX in advance

Here is the log:

[15/Jan/2014 11:19:52][4992] {smtps} Command EHLO webmail.cbxxx.xx
[15/Jan/2014 11:19:52][4992] {smtps} Sent reply to EHLO: 250 webmail.coyyy.yy ...
[15/Jan/2014 11:19:52][4992] {smtps} Command STARTTLS
[15/Jan/2014 11:19:52][4992] {conn} Connection from 94.xx.xx.201:54553 to 192.xx.xx.5:25, socket 875336.
[15/Jan/2014 11:19:52][4992] {conn} SSL debug: id 0885C208 SSL handshake started: before/accept initialization
[15/Jan/2014 11:19:52][4992] {conn} SSL debug: id 0885C208 SSL_accept:before/accept initialization
[15/Jan/2014 11:19:52][4992] {conn} SSL debug: id 0885C208 SSL_accept:error in SSLv2/v3 read client hello A
[15/Jan/2014 11:19:52][4992] {conn} SSL debug: id 0885C208 SSL3 alert write:fatal:handshake failure
[15/Jan/2014 11:19:52][4992] {conn} SSL debug: id 0885C208 SSL_accept:error in SSLv3 read client hello C
[15/Jan/2014 11:19:52][4992] {conn} SSL debug: id 0885C208 SSL_accept:error in SSLv3 read client hello C
[15/Jan/2014 11:19:52][4992] {conn} Cannot accept SSL connection from 94.xx.xx.201:54553 to 192.xx.xx.5:25: SSL code 1, system error: (0) Der Vorgang wurde erfolgreich beendet.
[15/Jan/2014 11:19:52][4992] {conn} SSL error stack: 4992:error:1408A0C1:SSL routines:SSL3_GET_CLIENT_HELLO:no shared cipher:.\ssl\s3_srvr.c:1355:
[15/Jan/2014 11:19:52][4992] {smtps} Failed STARTTLS in SMTP connection with 94.xx.xx.201
[15/Jan/2014 11:19:52][4992] {smtps} SMTP server session end
[15/Jan/2014 11:19:52][4992] {conn} Closing socket 875336
  •  
Kedar

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There are some changes for TLS in CommuniGate Pro 6.0.8, I suggest try upgrade CGP first.
http://www.communigate.com/CommuniGatePro/History60.html#Sum mary
6.0.8 27-Dec-2013
...
TLS: ciphers offered for outgoing connections have been reordered.
TLS: the CA chain sent with the server certificate is processed now.
...
  •  
dornauer@coop-himmelblau.

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THX a lot, i'll suggest this tip immediately to that partner.
I'll make updates to that forum, if i have one.

If there are other suggestion and ideas, please leave a line here.

Cheers from Vienna
Peter
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