2.3 Delivery Agent F= Flags

F=0

Turns off MX lookups for this delivery agent (see §30.8.1).

F=3

Extends quoted-printable conversions to encode ASCII characters that cannot be represented in EBCDIC (see §30.8.2).

F=5

Uses rule set 5 after local aliasing (see §30.8.3).

F=7

Strips the high bit when delivering (see §30.8.4).

F=8

Forces EightBitMode=p for this delivery agent (see §30.8.5).

F=:

Checks for :include: files (see §30.8.7).

F=|

Checks for |program addresses (see §30.8.8).

F=/

Checks for /file addresses (see §30.8.9).

F=@

Allows users to be looked up in the User Database (see §30.8.10).

F=a

Runs the extended SMTP protocol (see §30.8.11).

F=A

Allows users to be in the LHS of an alias (see §30.8.12).

F=b

Ensures a blank line after message (see §30.8.13).

F=c

Excludes comment from $g in headers (see §30.8.14).

F=C

Adds @domain to recipient that lacks one (see §30.8.15). Applies to the sending delivery agent only.

F=d

Never encloses route addresses in <> (see §30.8.16).

F=D

Specifies the need for a Date: header (see §30.8.17).

F=e

Marks this delivery agent as "expensive" (see §30.8.18).

F=E

Changes any extra lines that begin in "From" into ">From" (see §30.8.19).

F=f

Causes delivery agent to add -f to argv (see §30.8.20).

F=F

Specifies the need for a From: header (see §30.8.21).

F=g

Suppresses sending of From:<> senders in bounce messages (see §30.8.22).

F=h

Preserves uppercase in hostnames (see §30.8.23).

F=i

Specifies to perform a User Database rewrite on the envelope sender (see §30.8.24).

F=I

Causes delivery agent to send SMTP VERB to the other site (see §30.8.25).

F=j

Specifies to perform a User Database rewrite of header recipient addresses (see §30.8.26).

F=k

Suppresses check for loops in HELO command (see §30.8.27).

F=l

Specifies that delivery agent is local (final) delivery (see §30.8.28).

F=L

Causes SMTP line limits to be applied (obsolete, see §30.8.29).

F=m

Says that the delivery agent can deliver to multiple recipients at once (see §30.8.30).

F=M

Specifies the need for a Message-ID: header (see §30.8.31).

F=n

Prevents the addition of a UNIX mailbox-style From to headers (see §30.8.32).

F=o

Runs the delivery agent under the uid and gid of the recipient (see §30.8.33).

F=p

Attempts to process the return path correctly (deprecated, see §30.8.34).

F=P

Specifies the need for a Return-Path: header (see §30.8.35).

F=q

Says to use a 252 instead of a 250 return code for an SMTP VRFY reply (see §30.8.36).

F=r

Causes the delivery agent to add a -r to argv (see §30.8.37).

F=R

Tells sendmail to use a reserved TCP port (see §30.8.38).

F=s

Causes quotation marks to be stripped from addresses (see §30.8.39).

F=S

Always run the delivery agent under a uid and gid specified (see §30.8.40).

F=u

Preserves uppercase for user names (see §30.8.41).

F=U

Prepends a UUCP-style From line (see §30.8.42).

F=w

Verifies that the user is local by checking for an /etc/passwd entry (see §30.8.43).

F=x

Specifies that the delivery agent requires a Full-Name: header (see §30.8.44).

F=X

Specifies that the delivery agent needs an RFC821 hidden dot (see §30.8.45).