SHould not work since cyberpanel creates or any other panel create a mailserver from that domain. You need to add something like webmail.myprimarydomain.com
If you look at the post you will see he/she ran into this issue:
SHould not work since cyberpanel creates or any other panel create a mailserver from that domain. You need to add something like webmail.myprimarydomain.com
If you look at the post you will see he/she ran into this issue: