Last updated November 3, 2011
Note: Please substitute the username "pdurbin" with your own Iris username.
Use "Sent Items" rather than "Sent" since it can't be changed in Outlook Web Access: https://fasmail.harvard.edu/owa
iPhone seems to be hard-coded to "Sent" unfortunately.
You must use Internet Explorer to log into https://fasmail.harvard.edu/owa in order to check your quota from a web browser. (Internet Explorer provides you with the "Premium" rather than "Basic" version of "Outlook Web Access experience" as seen under Options -> About.) Hover your mouse over your name (the root of your folder tree) and a pop up should appear. As of October 2011 my quota is 2 GB.
You must use Internet Explorer to log into https://fasmail.harvard.edu/owa in order to set up server-side rules from a web browser.
I'm not sure if it's possible to export your rules from Outlook Web Access, but this post describes how to do it from Outlook.
Except in the case of Iris accounts emailing each other, mail to @fas addresses is delivered to smtp.fas.harvard.edu and then to your email@example.com account with a .forward file. Some MX records:
fas.harvard.edu. 10800 IN MX 0 smtp.fas.harvard.edu. fasmail.harvard.edu. 10800 IN MX 300 navisite.com.s5b1.psmtp.com.
Log into https://fasmail.harvard.edu/ews/exchange.asmx as fas_domain\pdurbin and you get some XML at https://fasmail.harvard.edu/ews/Services.wsdl
See also How should I update my Apple Mail settings after Tuesday October 11 2011?