sendmail, 4th Edition

ph

Deliver with phquery program V8.7 and later, deprecated

When using the ph delivery agent, actual delivery is through the phquery(8) program, which looks up user information in the CCSO nameserver database and then injects that mail back into sendmail for delivery.^[273] This program cannot be used by itself because you must also install the qi server, and include your own database of user information.

Support is included in your mc configuration file like this:

MAILER(`local')         ← define first
MAILER(`phquery')       ← define second

Note that the local delivery agent must be defined before you can define phquery.

The defaults for the ph delivery agent are shown in Table 20-10, along with the mc configuration macros used to alter those defaults.

Table 20-10. Defaults for the ph delivery agent

Macro	§	Default
PH_MAILER_ARGS	How to define A= with your mc configuration on page 738	A=phquery -- $u
PH_MAILER_FLAGS	Delivery Agent F= Flags on page 759	F=nrDFMehmu
PH_MAILER_PATH	Modify P= using an mc configuration macro on page 750	P=/usr/local/etc/phquery
None	R= on page 751	R=EnvToL/HdrToL
None	S= on page 753	S=EnvFromL
None	T= on page 754	T=DNS/RFC822/X-Unix
PH_MAILER_QGRP	Q= on page 750	No Q= default

The phquery and qi programs, and links to help with both, are available from:

http://www-dev.cso.uiuc.edu/ph/

^{[273] *} V8.10 introduced the ph database map (ph on page 930), which allows sendmail to perform direct ph queries, and thereby avoid this double processing.