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msimerson / mail-dmarc

Mail::DMARC, a complete DMARC implementation in Perl
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Force lower case for SPF domain input #212

Closed dlucredativ closed 1 year ago

dlucredativ commented 1 year ago

RFC7489 demands a case-insensitive alignment check. This is partially achieved by lower-casing header_from input, but non-lowercase SPF input was still able to break alignment.