Generating the random for queue encryption in OpenSMTPd

openssl my love

No superfluous blah blah blah blah blah blah:

openssl rand -hex 16

openssl rand for pseudo random -hex for hexadecimal result we can also make -base64, 16 for 16 char in input so the result will be there of 32 hexadecimal characters.
This value will be used to encrypt the queue in OpenSMTP