The following table describes additional command-line options that are available in version 8.13 of sendmail. Other command-line options are described in the sendmail(1M) man page.
Table 14–16 Command-Line Options Available in Version 8.13 of sendmail| 
 Option  | 
 Description  | 
|---|---|
| 
 -D logfile  | 
 Sends debugging output to the indicated logfile, instead of including this information with the standard output.  | 
| 
 -q[!]Qsubstr  | 
 Specifies the processing of quarantined jobs that have this substr, which is a substring of the quarantine reason. See the description of the -Qreason option. If ! is added, this option processes quarantined jobs that do not have this substr.  | 
| 
 -Qreason  | 
 Quarantines a normal queue item with this reason. If no reason is given, the quarantined queue item is unquarantined. This option works with the -q[!]Qsubstr option. The substr is a portion (or substring) of the reason.  |