Q: iPhone os x sever account with multiple mail addresses

Hello everyone

I have setup a mac mini server and it runs well!

i just have 1 problem, i have users with multiple mail accounts and if i add the account with an os x server account on a iPhone.

Then only 1 mail address shows up, the incoming mails are coming fine but i can't send from the other mail addresses.

thanks!!!!!

Greetings Jore