Prohibit sending external mail.

[Dudki]

I was asked to clarify the possibility of following features: separate users through the COS, for those who can send mail to the outside and those who can only send within the domain (or a specified list of addresses). This can be solved independently?

[phoenix]

Search the wiki (or the forums) for the word 'restrict'.

[Dudki]

Thank you. And how can request this option in the web interface?

[phoenix]

Thank you. And how can request this option in the web interface?

There is no option in the Admin UI, the only method currently is via the commands in the wiki article.