F=6
Always strip headers to 7 bits V8.10 and later
Older versions of sendmail strip
only the high bit from header characters when
transmitting an 8-bit message to a 7-bit-only site.
Beginning with V8.10 sendmail,
it is possible to use this F=6 delivery agent flag to force
sendmail to always strip the
high bit from all header characters, no matter
what.
This F=6 delivery
agent flag is not set by default for any delivery
agent.
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