Hi,

Try 

yum downgrade openssl-devel openssl 

You might need to downgrade a second time which will allow this issue to solve

Regards
nic


From: distribucionli...@gmail.com
Date: Tue, 21 Jul 2015 17:58:17 -0300
To: qmailtoaster-list@qmailtoaster.com
Subject: [qmailtoaster] error sending : SSL3_CHECK_CERT_AND_ALGORITHM:dh key 
too small

Hello friends, I have QmailToaster + centos 5.9 and sending emails I've been 
getting some failure notice:


--------------------------------------------------------------mailer-dae...@dominio.com"
<mailer-dae...@dominio.com> escribió:

Hi. This is the qmail-send program at dominio.com
I'm afraid I wasn't able to deliver your message to the following
addresses.
This is a permanent error; I've given up. Sorry it didn't work out.

<jos...@otherdomain.com>:
TLS connect failed: error:14082174:SSL
routines:SSL3_CHECK_CERT_AND_ALGORITHM:dh key too small; connected to 
191.8.4.132.I'm not going to try again; this message has been in the queue too 
long.
-------------------------------


anyone knows of that is?
Best regards,
Paul

                                          

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