That's the issue. TLSv1.1 & TLSv1.2 are only support in openssl-1.*

You could disable TLS for this email address (

Or, you could upgrade manually openssl on CentOS 5 (


On 3/9/2018 8:30 AM, Rvaught wrote:

Version .9.8e-33.el5_11

*From:*Eric Broch []
*Sent:* Friday, March 09, 2018 10:26 AM
*To:* qmailtoaster-list
*Subject:* Re: [qmailtoaster] Mail Failure

What version of openssl is on your host?

# rpm -qa | grep openssl

On 3/8/2018 11:22 AM, Rvaught wrote:

    I am getting this failure when trying to send mail to one email

    The error is TLS connect failed: error 140770FC: SSL routing: SSL
    3_GET_SERVER_HELLO: unknown protocol. It appears your server wants
    a TLS or SSL connection or certificate.

    I am running a qmail toaster on Centos 5.11.

    How can I tell what version TLS I am using? The support person on
    the other end says they do not accept version of  lower than TLS
    1.1 or 1.2.

    Thanks ,


Eric Broch
White Horse Technical Consulting (WHTC)

Eric Broch
White Horse Technical Consulting (WHTC)

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