Mxtoolbox-alternative · GitHub Topics

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charlesabarnes / SPFtoolbox

Star 296

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SPFtoolbox is a Javascript and PHP app to look up DNS records such as SPF, MX, Whois, and more

javascript php rest-api restful domain lookup spf dns-record mxtoolbox mxtoolbox-alternative

• Updated Feb 13, 2026
• PHP

AdminVin / O365-EmailHeaderAnalyzer

Star 0

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Offline message header analyzer for Office 365

office message spf dkim outlook headers sender-policy-framework dmarc spam-detection office-365 o365 mxtoolbox-alternative domain-keys-identified-mail message-headers

• Updated Jan 14, 2026
• PowerShell

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