[qmailtoaster] sslv3_alert_handshake_failure

I get these error messages with some servers Is it me or them or any suggestions I've just migrated to *CentOS Linux release 7.7.1908 (Core)* Error message from /var/log/qmail/send/current deferral:

[qmailtoaster] sslv3_alert_handshake_failure due to limited cipher-set in tlsserverciphers

I've been using a limited (hardened) set of SSL ciphers in tlsserverciphers, but have noticed today that there have been 13 delivery failures from our server in the past twenty days: