sendmail, 4th Edition

Delivery Agent F= Flags

In this section, we detail each delivery agent flag. The complete list is shown in Table 20-19. They are presented in alphabetical order, where lowercase letters precede uppercase letters for each delivery agent flag.

When configuring with the mc technique, examine cf/README to determine which delivery agent flags are set by default for which delivery agents.

Table 20-19. Delivery agent F= flags

Flag	§	Meaning
F=%	F=% on page 761	Hold delivery until ETRN or -qI or -qR or -qS (V8.10 and later).
F=0	F=0 (zero) on page 761	Turn off MX lookups for delivery agent (V8.8 and later).
F=1	F=1 (one) on page 762	Don’t send null bytes (V8.10 and later).
F=2	F=2 on page 763	Force SMTP even if ESMTP is offered (V8.12 and later).
F=3	F=3 on page 763	Extend quoted-printable to EBCDIC (V8.7 and later).
F=5	F=5 on page 764	Use the localaddr rule set 5 after local aliasing (V8.7 and later).
F=6	F=6 on page 764	Always strip headers to 7 bits (V8.10 and later).
F=7	F=7 on page 764	Strip the high bit when delivering (V8.6 and later).
F=8	F=8 on page 764	Force EightBitMode=p MIME encoding (V8.7 and later).
F=9	F=9 on page 765	Convert 7- to 8-bit if appropriate (V8.8 and later).
F=:	F=: (colon) on page 765	Check for :include: files (V8.7 and later).
F=|	F=| (vertical bar) on page 765	Check for |program addresses (V8.7 and later).
F=/	F=/ (forward slash) on page 766	Check for /file addresses (V8.7 and later).
F=@	F=@ on page 766	User can ...