# References: and In-Reply-To: get used interchangeably
# in some "duplicates" in LKML. We treat them the same
# References: and In-Reply-To: get used interchangeably
# in some "duplicates" in LKML. We treat them the same
# do NOT consider the Message-ID as part of the content_hash
# if we got here, we've already got Message-ID reuse
my %seen = map { $_ => 1 } @{mids($eml)};
# do NOT consider the Message-ID as part of the content_hash
# if we got here, we've already got Message-ID reuse
my %seen = map { $_ => 1 } @{mids($eml)};