Internet Services Delta Manual for HP-UX 11i Version 1.6

• A '/Quit' command to address the test mode is added. This command can be used to exit
from the address test mode.
• The SMTP commands are not processed when the SMTP connection drops. This prevents a
remote system from flooding the connection with commands and also disconnecting. In the
earlier releases, all buffered commands were processed by the server.
• Purgestat and sendmail '-bH' options delete only expired files in the host status database,
which have exceeded the values set by Timeout.hoststatus.
Compatibility with Previous Versions
Customers currently using any 8.x version of Sendmail do not need to modify their configuration
file. It is compatible with this release of Sendmail. However, it is highly recommended to use the
Sendmail 8.11.1 configuration file (.cf) version9 delivered with this release in order to effectively
use the new features and changes incorporated in this version.
Documentation
The following manpages are distributed with this release of Sendmail:
• killsm.1m
• mailq.1
• mailstats.1
• makemap.1m
• praliases.1
• sendmail.1m
The following RFCs have been implemented in Sendmail 8.11.1:
• RFC 821
• RFC 822
• RFC 2821
• RFC 2033
• RFC 2034
• RFC 2222
• RFC 2476
• RFC 2487
• RFC 2505
• RFC 2553
• RFC 2554
Known Problems and Workarounds
The following are the known problems in this release of Sendmail:
• Sendmail uses identd, an optional authentication tool to find the user id for a given connection
established with a remote machine. identd invokes some kernel services which hold the system
resources for a long time. This affects the performance of Sendmail when there are large
number of active TCP connections. The system appears hung during this timeframe.
In order to resolve this problem, do the following:
1. Disable identd by modifying the following entry in the sendmail.cf file:
#O Timeout.ident=5s
16 Sendmail 8.11.1