SPFToolbox is described as 'SPFtoolbox is an open-source Javascript and PHP app to look up DNS records such as SPF, MX, Whois, and more' and is an app in the development category. There are five alternatives to SPFToolbox for a variety of platforms, including Web-based, Self-Hosted, Docker, Node.JS and Docker Hub apps. The best SPFToolbox alternative is MxToolBox, which is free. Other great apps like SPFToolbox are DumbWhois, Dnsstuff, MXAlerts and DNS Check.
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.
MxToolBox is the most popular Web-based alternative to SPFToolbox.
MxToolBox is the most popular free alternative to SPFToolbox.
A simple web application for looking up WHOIS, IP, and ASN information using free APIs. The application automatically detects the type of query and provides formatted results with a clean, modern UI that supports both light and dark modes.
DumbWhois is the most popular Self-Hosted alternative to SPFToolbox.
DumbWhois is the most popular Open Source alternative to SPFToolbox.
DNSstuff offers DNS tools, Network tools, Email tools, DNS reporting and IP information gathering. Explore monitoring products and free DNS tools at DNSstuff.
MXAlerts performs 24/7 remote round-trip email server monitoring software. We confirm email can be sent and received from your email server or exchange server.
MXAlerts is the most popular commercial alternative to SPFToolbox.
DNS Check is an application which compares the DNS records that you enter to what nameservers are returning in response to queries. If there's an issue, DNS Check will notify you, and enable you to quickly identify what it is. Issues which can be detected include:
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