https://help.comodo.com/topic-443-1-898-11415-Block-Users.html
Block Users, Outgoing Mail Server SMTP, Secure Email Gateway Appliance
Block Users page is a tutorial on how to view and manage users and domains that are blocked from sending outgoing mails. From here you can: add, delete,...
outgoing mail serversecure email gatewayblock userssmtpappliance
https://support.apple.com/en-afri/guide/mail/mlhlp1072/mac
Use SSL to connect to the outgoing mail server in Mail on Mac - Apple Support
In Mail on your Mac, use SSL to securely connect to an SMTP email server.
outgoing mail server
https://help.comodo.com/topic-443-1-898-11415-Block-Users.html
Block Users, Outgoing Mail Server SMTP, Secure Email Gateway Appliance
Block Users page is a tutorial on how to view and manage users and domains that are blocked from sending outgoing mails. From here you can: add, delete,...
outgoing mail serversecure email gatewayblock userssmtpappliance