All of your MX record, DNS, blacklist and SMTP diagnostics in one integrated tool. Input a domain name or IP Address or Host Name. Links in the results will guide you to other relevant tools and information.


Sender Policy Framework (SPF) is described as 'Is used to authenticate the sender of an email. With an SPF record in place, email providers can verify that a mail server is authorized to send email for a specific domain. You can Lookup or Generate the SPF record' and is an website. There are 1 alternatives to Sender Policy Framework (SPF), not only websites but also apps for. The best Sender Policy Framework (SPF) alternative is MxToolBox, which is free.
All of your MX record, DNS, blacklist and SMTP diagnostics in one integrated tool. Input a domain name or IP Address or Host Name. Links in the results will guide you to other relevant tools and information.

