When I see this, it’s because the customer’s email client does not support TLS 
1.1 or 1.2…


The last time, for me, it was a Windows 7 PC running Outlook 2007… I had to 
point the client to the websites that show how to install the latest TLS 
support onto Windows 7.




From: Tony White [mailto:t...@ycs.com.au] 
Sent: Saturday, October 13, 2018 09:34 PM
To: qmailtoaster-list@qmailtoaster.com
Subject: [qmailtoaster] I do not understand this error!


Hi folks,
  I sent an email to a person and got this reply...

TLS connect failed: error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown 
protocol; connected to xxx.xxx.xxx.xxx.
Is this error at my end or theirs?
best wishes
  Tony White

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