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The mail server Thunderbird keeps coming up with this error

butss
Level 2

Sending of the message failed.
Peer using unsupported version of security protocol.
The configuration related to mail.tpg.com.au must be corrected

I am using this data

Server name: pop3.tpg.com.au

Username:  butss

Port: 110

Outpoing server: mail.tpg.com.au

Connection security: STARTTLS

Port: 587

 

Is this data correct?

1 REPLY 1
Shane
Moderator

Hi @butss ,

 

Welcome to the community!

 

We did an article related to this that you may find helpful, this will guide you a troubleshooting.

 

See link below.

 

Thunderbird ver 78.1.1 and above Troubleshooting 

 

Let us know how it will go and should you require further assistance.

 

Regards,