sendmail, 4th Edition

Table of All -d Categories

Because debugging is so closely tied to the internals of sendmail, we no longer cover all debugging switches in detail. In the reference section at the end of this chapter, we cover in detail only those debugging switches that are useful to the administrator. In Table 15-3, we list all the debugging switches by category, regardless of their usefulness, and give a brief description of each. If you need more detail about those we do not document, we suggest you use sendmail/TRACEFLAGS as a guide to the appropriate source code files.

Table 15-3. Debugging switches by category

Category	Description
-d0	Display system configuration information.
-d1	Show sender information.
-d2	Trace sendmail’s exit information.
-d3	Print the load average.
-d4	Trace disk-space calculations.
-d5	Trace timed events.
-d6	Show failed mail.
-d7	Trace the queue filename.
-d8	Trace hostname canonicalization.
-d9	Trace identd exchanges.
-d10	Trace recipient delivery.
-d11	Trace delivery generally.
-d12	Trace mapping of relative host.
-d13	Trace the envelope and envelope splitting.
-d14	Show header field commas.
-d15	Trace incoming connections.
-d16	Trace outgoing connections.
-d17	Trace MX record lookups.
-d18	Trace SMTP replies.
-d19	Show ESMTP MAIL and RCPT parameters.
-d20	Show delivery agent selection.
-d21	Trace rules and rule sets.
-d22	Show address tokenization.
-d23	Unused.
-d24	Trace assembly of address tokens.
-d25	Trace the ...