Invite feature in iOS, how to send a person's contact a message from within your app?
14352
How to programmatically send SMS on the iPhone?
51142
Send custom flag responses to messages inbox
20006
iOS - Notification of when a call is taking place?
108323
Send emails from Email Service address?
41613
Send a copy of outbound messages to another address
73848
iOS crash log catch, debug info.. Catch and send via email to the Dev team
52895
How to send emails from my Android application?
111740
Can Chat be added to the apps?
153135
Force Messages to use SMS for specific contact rather than iMessage?
62736
Auto reply to text and/or iMessage?
73170
Include some chat capabilities in iOS app
125768
"Share with" e-mail invitations not being sent even though all other e-mails work in On-Premise SP 2013
75978
How do I invite someone to my world in Minecraft PE?
141804
Email application with notifications only for specified contacts (standard SMTP/POP3/IMAP)
92234
How do I filter messages that are sent to a single recipient?
87447
How can I send same email multiple times in iOS?
153415
Programmatically Request Access to Contacts