i want to test Nethserver as mail server into our company, but i have many questions :
- Orange Business didn’t allow reverse IP… should i use the internal IP to access on it ?
- Which port did i need to open to access on it from outside ?
(Port actually opened and redirected 110 / 143 / 587 / 993 TCP or UDP only for imap),
- The domain provider is 1&1, should is use smarthost to send emails ?
Many thanks for your help.
P.S. sorry for my english, i’m french