Determining whether an email is valid in PHP
6174
How to check if an email address exists without sending an email?
48242
How can I get useful error messages in PHP?
86604
Prevent sent emails treated as junk mails using php mail function
104130
How to send mail using PHP?
87648
Is it possible to check if an email is confirmed on Facebook?
58312
Why does (0 == 'Hello') return true in PHP?
157148
What are the valid characters in PHP variable, method, class, etc names?
50034
How can I send an email using PHP?
142278
Use email to validate post, not unlike craigslist
21423
Email address validation using ASP.NET MVC data type attributes
13458
How can I sanitize user input with PHP?
72937
Finding user using an email address
78429
HTML in php mail function
42559
(Built-in) way in JavaScript to check if a string is a valid number
114938
Check if email exist php
96246
What's quicker and better to determine if an array key exists in PHP?
112694
How do I decode mail header strings with their encoding type in them in PHP