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FastMail supports regex matching any header, including To/CC/BCC: https://www.fastmail.com/help/receive/regexprules.html https://www.fastmail.com/help/receive/r
by troydavis 7y ago
FastMail supports regex matching any header, including To/CC/BCC: https://www.fastmail.com/help/receive/regexprules.html https://www.fastmail.com/help/receive/regexprules.html
Multiple rules can be ANDed or ORed as well, if you don’t want to make a single regex that’s more complex.
They use - and expose - Sieve: https://www.fastmail.com/help/technical/sieve-howto.html https://www.fastmail.com/help/technical/sieve-howto.html