eMail checking your spf record

Your spf record is used to validate your from domain in your email is allowed to be sent from the mail server which is sending your mail. This helps mail systems catch spammers using false from lines but also effects you if you do not set it up for your company and send using a service.

A couple places let you check your spf record online with a simple interface.

Microsoft SPF wizard

MxToolBox

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