Changing IPhone exchange settings

Click Settings from your main screen then press Mail, Contacts, Calendars

 

 

 

 

 

 

 

Select your corresponding account

 

 

 

 

 

 

 

Press the Account area at the top of the screen

 

 

 

 

 

 

 

Edit the Server Section of the page from mx1.your.domain to mx2.your.domain