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Normalize fastmail alias subdomains
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‎CHANGELOG.md‎

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* Periods are now removed from `gmail.com` email address local parts when
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`hash_address` is used. For example, `[email protected]` will become
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`[email protected]`.
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* Fastmail alias subdomain email addresses are now normalized when
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`hash_address` is used. For example, `[email protected]` will
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become `[email protected]`.
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## v2.4.0 (2024-01-12)
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‎lib/minfraud/components/email.rb‎

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@@ -100,6 +100,17 @@ def clean_email_address(address)
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local_part.gsub!('.', '')
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end
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domain_parts = domain.split('.')
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if domain_parts.length > 2
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possible_domain = domain_parts[1..].join('.')
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if FASTMAIL_DOMAINS.key?(possible_domain)
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domain = possible_domain
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if local_part != ''
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local_part = domain_parts[0]
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end
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end
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end
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"#{local_part}@#{domain}"
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end
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@@ -129,6 +140,127 @@ def clean_email_address(address)
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}.freeze
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private_constant :EQUIVALENT_DOMAINS
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FASTMAIL_DOMAINS = {
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'123mail.org' => true,
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'150mail.com' => true,
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'150ml.com' => true,
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'16mail.com' => true,
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'2-mail.com' => true,
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'4email.net' => true,
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'50mail.com' => true,
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'airpost.net' => true,
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'allmail.net' => true,
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'bestmail.us' => true,
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'cluemail.com' => true,
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'elitemail.org' => true,
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'emailcorner.net' => true,
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'emailengine.net' => true,
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'emailengine.org' => true,
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'emailgroups.net' => true,
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'emailplus.org' => true,
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'emailuser.net' => true,
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'eml.cc' => true,
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'f-m.fm' => true,
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'fast-email.com' => true,
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'fast-mail.org' => true,
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'fastem.com' => true,
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'fastemail.us' => true,
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'fastemailer.com' => true,
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'fastest.cc' => true,
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'fastimap.com' => true,
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'fastmail.cn' => true,
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'fastmail.co.uk' => true,
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'fastmail.com' => true,
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'fastmail.com.au' => true,
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'fastmail.de' => true,
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'fastmail.es' => true,
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'fastmail.fm' => true,
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'fastmail.fr' => true,
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'fastmail.im' => true,
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'fastmail.in' => true,
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'fastmail.jp' => true,
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'fastmail.mx' => true,
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'fastmail.net' => true,
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'fastmail.nl' => true,
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'fastmail.org' => true,
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'fastmail.se' => true,
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'fastmail.to' => true,
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'fastmail.tw' => true,
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'fastmail.uk' => true,
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'fastmail.us' => true,
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'fastmailbox.net' => true,
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'fastmessaging.com' => true,
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'fea.st' => true,
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'fmail.co.uk' => true,
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'fmailbox.com' => true,
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'fmgirl.com' => true,
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'fmguy.com' => true,
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'ftml.net' => true,
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'h-mail.us' => true,
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'hailmail.net' => true,
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'imap-mail.com' => true,
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'imap.cc' => true,
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'imapmail.org' => true,
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'inoutbox.com' => true,
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'internet-e-mail.com' => true,
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'internet-mail.org' => true,
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'internetemails.net' => true,
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'internetmailing.net' => true,
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'jetemail.net' => true,
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'justemail.net' => true,
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'letterboxes.org' => true,
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'mail-central.com' => true,
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'mail-page.com' => true,
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'mailandftp.com' => true,
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'mailas.com' => true,
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'mailbolt.com' => true,
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'mailc.net' => true,
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'mailcan.com' => true,
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'mailforce.net' => true,
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'mailftp.com' => true,
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'mailhaven.com' => true,
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'mailingaddress.org' => true,
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'mailite.com' => true,
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'mailmight.com' => true,
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'mailnew.com' => true,
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'mailsent.net' => true,
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'mailservice.ms' => true,
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'mailup.net' => true,
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'mailworks.org' => true,
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'ml1.net' => true,
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'mm.st' => true,
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'myfastmail.com' => true,
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'mymacmail.com' => true,
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'nospammail.net' => true,
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'ownmail.net' => true,
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'petml.com' => true,
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'postinbox.com' => true,
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'postpro.net' => true,
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'proinbox.com' => true,
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'promessage.com' => true,
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'realemail.net' => true,
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'reallyfast.biz' => true,
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'reallyfast.info' => true,
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'rushpost.com' => true,
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'sent.as' => true,
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'sent.at' => true,
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'sent.com' => true,
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'speedpost.net' => true,
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'speedymail.org' => true,
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'ssl-mail.com' => true,
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'swift-mail.com' => true,
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'the-fastest.net' => true,
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'the-quickest.com' => true,
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'theinternetemail.com' => true,
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'veryfast.biz' => true,
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'veryspeedy.net' => true,
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'warpmail.net' => true,
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'xsmail.com' => true,
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'yepmail.net' => true,
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'your-mail.com' => true,
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}.freeze
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private_constant :FASTMAIL_DOMAINS
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def clean_domain(domain)
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domain = domain.strip
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‎spec/components/email_spec.rb‎

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{ input: 'Test+alias@bücher.com', output: '[email protected]' },
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{ input: '[email protected]', output: '[email protected]' },
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{ input: '[email protected]', output: '[email protected]' },
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{ input: '[email protected]', output: '[email protected]' },
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]
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tests.each do |i|

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