postfix RSA certificate generation.
ISPconfig interface certificate (if generated) is RSA 4096 bit, however the certificate generated for postfix is only RSA 2048 bit, it would make sense to change the postfix cert to RSA 4096 bit for consistency.
ISPconfig interface certificate (if generated) is RSA 4096 bit, however the certificate generated for postfix is only RSA 2048 bit, it would make sense to change the postfix cert to RSA 4096 bit for consistency.