Directadmin Old Cyphers for Mail
If a user insists on maintaining support for legacy systems to enable connections
using older SSL methods, one option is to set ssl_configuration=old
in the
options.conf
file of custombuild. However, this setting changes the SSL ciphers
for all web-related services as well. Alternatively, it is possible to downgrade
the ciphers exclusively for mail services without affecting the web services.