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authorNicolas Cavigneaux <nico@bounga.org>2014-10-16 11:59:00 +0200
committerZachary Scott <e@zzak.io>2014-10-18 13:01:20 -0700
commit642794a3f24a00ad21ad7a5cd2e374a9cef2c82c (patch)
treed7f52ceff25a8faf094ddd6a3ecaffde191d2280 /guides
parent68fd1a3b2310d7054cbd13432c6e1273e61c7d2b (diff)
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[ci skip] Add a note about headers overwriting
Since some headers can appear multiple times in an email it's required to set it to nil first when you want to overwrite an existing one. This commit add some information about this process. Fix #15912
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