Understanding And Correcting SMTP Relaying Problems Word Count: 499 Summary: SMTP is the acronym for “Simple Mail Transfer Protocol”, which is the protocol used for sending email. Anyone who has ever sent an email has used the SMTP protocol behind the scenes. “Open mail relaying” is when an SMTP server is configured in such a way that it lets anyone send email through it. The problem people have now is that open mail relaying is a thing of the past – it is now much more difficult to find an SMTP server that will work for you. An SMTP relaying problem ... Keywords: smtp2go, smtp mail server, mail relay server Article Body: SMTP is the acronym for “Simple Mail Transfer Protocol”, which is the protocol used for sending email. Anyone who has ever sent an email has used the SMTP protocol behind the scenes. “Open mail relaying” is when an SMTP server is configured in such a way that it lets anyone send email through it. The problem people have now is that open mail relaying is a thing of the past – it is now much more difficult to find an SMTP server that will work for you. An SMTP relaying problem arises when you try to send an email through an SMTP server and find that you cannot, typically with an error message reading “relaying mail to name@domain.comhttp://turkiyespot.com/smtp2go.com)</a>, which is essentially an SMTP server that can be used from any location. Because it can determine that the sender of an email is legitimate, it can always allow legitimate emails to be sent, while preventing all attempts to send unsolicited emails. Services such as SMTP2Go have become necessary in recent years as ISPs crack down on the unauthorized use of their servers.