Verizon is one of the many Internet Service Providers that require you to authenticate when sending mail. The purpose of SMTP authentication is to reduce email spamming and abusive mailing behaviors.

With many types of business email accounts, your computer connects to a machine called the Simple Mail Transfer Protocol server when you send messages. If you have difficulty sending messages, there ...

July 5, 2005 Add as a preferred source on Google Add as a preferred source on Google One of the little-known freebies Gmail offers is a portable SMTP server to send mail from any network for any email ...