Not getting facebook email

I'm using the Facebook C# SDK for build an website with some facebook integration and I'm having some problems with getting the email from an facebook user.

I ask for these permissions:

email,user_birthday,user_about_me,user_relationships,publish_stream,offline_access,user_location

And when asking for fields I ask for these:

id,first_name,middle_name,last_name,picture,email,birthday,location,gender,friends,bio

This is allready live an in most cases there is no problem at all. But in some cases about 1/100 I don't get the email field but all the others fields are there开发者_如何学运维.

Do any one know how this can happen?

I tested with different privacy settings and with multiple facebook accounts.

Ole Dallerup Sørensen

Just like you said, some people have their privacy settings set up so that Facebook proxies any emails to them. This means despite them granting you the permission you will still not get their email address.

I found an solution to my problem for now. Instead of using the graph api I run an fql query and this gives me the email.

the fql:

SELECT email FROM user WHERE uid = me()