{1}Trusted Mail Domain Settings{2} is a way to specify the mail servers that may be used for user self-registering in ONLYOFFICE™.{0}You can either check the {1}Custom domains{2} option and enter the trusted mail server in the field below or select the {1}Any domains{2} option.{0}In these cases any member of your company who has an account at specified mail server will be able to register him(her)self by clicking the {1}Join{2} link on the {1}Sign In{2} page and entering an email address with the trusted domain name you add.{0}To disable this option check the corresponding radio button.{0}To apply the changes you made use the {1}Save{2} button at the bottom of the section.