Send Email to Phone
SMS is a great way to get email messages on your phone. Most carriers have "SMS gateways" which take email messages from the Internet and deliver them to their customers' cell phones as SMS text messages.
Get Unlimited Gmail Email Addresses
You can add a plus sign (+) after your email address, and message will still get to your inbox.
Resources For Professionals
How To Encrypt Email
Encrypted email allows you to protect your confidential email from casual prying when you communicate with others.
Online Email Verifier
This free email verifier let you verify if an email address is valid, properly formatted and really exist.
Email Address Validation
Email Address Validation Regular Expression, C#, VB, Java, PHP script.
SMTP Reply Codes
SMTP Reply Codes By Command along with description.
HTTP Reply Codes
HTTP Reply Codes along with description.