Methods for responding to an email message by a phone call from a mobile device are described. In some embodiments, mobile devices are capable of receiving emails. The emails may be in form of messages in a threaded conversation. Each message has metadata and the metadata includes a phone number corresponding to a sender of the message. The text or information associated with the message is displayed but not the metadata. While a user is reading the message displayed on the mobile device, the user is provided with a plurality of options to respond to the message, an option is for the user to call the sender of the message using the phone number in the metadata. Upon selecting such an option, the user is able to initiate a call to the sender of the message by activating a feature to call using the phone number stored in the metadata without physically looking up and dialing the sender's number. Other embodiments are also described.