Sophos Firewall

Discussions v17 in MTA mode disables use of TLS 1.0 which may cause email delivery failure

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v17 in MTA mode disables use of TLS 1.0 which may cause email delivery failure

Karlos over 7 years ago

Due to new behavior, v17 clients in MTA mode may have trouble receiving and sending emails to servers that don't support a higher TLS protocol than TLS 1.0.

If this affects you, follow our KB Article: Advisory: Sophos XG Firewall email fails to send to servers that only support TLS 1.0

Cheers,

Karlos

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