Examples:

• What's your email address?
• What's your email address?
• We'll send you a username and password. What's your email address?
• What's your email address? I need to send you some information.
• What's your email address? - It's santi_fp@vmail.com.
• What's your email address? I'll send you these pictures.
• What's your email address? I'll add you to our mailing list.
• What's your email address? I'll send you an invitation to the party.
• What's your email address? I can send you an estimate for the work.
• What's your email address? I used to have it but I lost it.