Knowledgebase: iPad/iPhone/iPod touch
Sending an e-mail with an attachment from the device causes signature to be sent as an attachment
Posted by on 26 August 2011 10:56 AM

This issue can occur when using an iOS device. When an e-mail is sent with an attachment from a device running version 4.2.10, the signature will appear as an attachment.  

This is a Microsoft Exchange ActiveSync issue. See Microsoft KB article: