Thunderbird on Win10 automatically updated itself to 78.2.2 (32-bit) and now when sending mail I get the error message: "Sending of the message failed. Peer using unsupported version of security protocol. The configuration related to mail.tpg.com.au must be corrected." Your help database suggests configuring pop3 and SMTP with the SSL option set to 'None' I assume the 'SSL' option is the same as the Thunderbird 'Connection security' option? 'Connection security' is currenty = 'STARTTLS' (other options are 'NONE' and 'SSL/TLS') When I set 'Connection security' to 'NONE' the 'Authentication method' defaults to 'Password transmitted insecurely' (other options for 'Authentication method' are 'Encrypted password', 'Kerberos / GSSAPI', and 'NTLM') Does TPG recommend I use Thunderbird with 'SSL' ('Connection security') = 'NONE' and 'Authentication method' = 'Password transmitted insecurely'? What are the security implications of using these settings?
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