Free SMTP Server List Without Authentication – POP3, IMAP, SMTP: Different Email Server Types And How To Use Them To Setup Windows Mail. Free SMTP Server List No Authentication – Active Directory Ports And Protocols.
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Jul 26, 2016
The complete description of SMTP, along with a full list of commands, was first released in RFC 821, in 1982.Later, the functionality of SMTP was extended to allow sharing of multimedia files, like pictures, audio files, and videos, and ESMTP (Extended Simple Mail Transfer Protocol) was developed. This protocol was described in detail in RFC 5321, and contains some additional commands.
An SMTP server is used to send email. Though server is in the name, they do not necessarily reside on an entire machine. Rather, an SMTP server is an application that runs all the time awaiting new mail to send. Email is sent using SMTP—Simple Mail Transfer Protocol. At its most basic, an SMTP server …
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