i am getting the NULL values for the Attachement.ContentType and contentId while reading the embedded(inline) image from exchange server 2010 using EWS(Exchange web service) Api ?

How do i read the embedded image from exchange server 2010 using EWS(Exchange web service) Api?

Problem:

i am getting the values of Attachement.ContentType and contentId is null for embedded image(inline) mails which are sent from the OWA of  exchange 2010 using the different browsers.

Working scenario:

i am able to read the content type and contentId values of embedded image(inline) mails which are sent from OWA uisng the IE9 andfirefox (26,30)  but

Non Working scenario:

when i sent the same embedded image mail from OWA using the chrome, ie9 or ie11 ,then i am getting the null values for the Attachement.ContentType and contentId.

How do i solve the above problem?