The pubic beta’s for SharePoint 2010 and Office 2010 are available now!

http://bit.ly/ZI2010

Today Microsoft published three videos as a Sneak Peek into SharePoint 2010:

When using SPUtility.SendEmail() to send an e-mail message from within a site on which anonymous access is enabled, you have to specify the from address.

The code in the fragment below is executed in the SendEmail method and explains why:

email = messageHeaders["from"];

if (email == null){  email = web.CurrentUser.Email;}else{  email = FoldEmailHeader(email, "from", true);  count--;}

The code listed above is being executed in the SendEmail method (obtained by using Reflector). As you can see, if the “from” address is not in the StringDictionary “messageHeaders”, the from address is being retrieved from web.CurrentUser. Since anonymous access is being used, this will obviously fail.

When you’re building a WebPart that uses some of the ASP.NET validator controls, make sure you specify a validation group for all of them and for the Control firing the validation (i.e. the Submit button). Also, if you’re using a validation summary specify it’s validation group property too.