-d31.2
Trace processing of headers Debug command-line switch
Header lines (Overview on page 1120) from the configuration file and from mail messages are processed by the chompheader( ) routine before they are included in any mail message. That routine parses each header line to save critical information, to check for validity, and to replace default values with new values.
The -d31.2
debugging switch[226] shows that sendmail
is about to check whether it should replace a
From
: or
Resent-From
:
header with the one defined by the H
configuration command.
If the header line is not read from the
configuration file and if
sendmail is not processing
the queue, the following test is made:
comparing header from (header) against default (address or name)
The value of the From
: or Resent-From
:
header is compared to the
sender’s address and to the
sender’s name. If it is the
same as either one, the address is replaced.
[226] * There is no
-d31.1
information.
Get sendmail, 4th Edition now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.