Internet Express for Tru64 UNIX Version 6.10 Administration Guide (5900-1418, March 2011)

Table 8 Sendmail Timers
Default ValueDescriptionTimer
5 to 10 minutesTimeout on MAIL FROM:Mail
1 hourTimeout on RCPT TO:rcpt
5 minutesTimeout on DATA acknowledgementdatainit
No defaultTimeout on DATA block readdatablock
1 hourTimeout on DATA acknowledgement of final
dot
datafinal
1 hourTimeout on wait of next commandcommand
NoneTimeout on initial greeting messageInitial
NoneTimeout on HELO or EHLOHelo
5 minutesTimeout on RSET acknowledgementRset
2 minutesTimeout on QUIT acknowledgementQuit
2 minutesTimeout on other SMTP commandsMisc
0/disabledTimeout on ident protocolIdent
5 minutesTimeout on NFS file openFileopen
Table 9 Sendmail Tunable Parameters
Default ValueDescriptionParameter
100Minimum file space needed for Sendmail to operateMinFreeBlocks
32768 bytesMaximum size of the header sectionMaxHeaderLength
0Maximum message lengthMaxMessageSize
0/0Maximum length of the MIME headersMaxMimeHeaders
To configure the Sendmail queue performance, follow these steps:
1. Under Mail on the Manage Components menu, choose Sendmail Server/Using Open Source
Configuration Rules.
2. From the Sendmail Server Administration menu, choose Configure Sendmail Server.
3. On the Configure Sendmail Server menu, make sure that Server is selected and click on
Configure.
4. From the Configure Sendmail Server menu, choose Configure Queue Performance.
A form is displayed, showing the current performance values.
5. Modify the timers and other parameters as desired.
6. Click Submit.
Configuring Trusted Layer Security
Sendmail includes support for enhanced security: Secure Socket Layer (SSL) and Transport Layer
Security (TLS). SSL and now TLS (successor to SSL) are used to establish a trusted connection.
Sendmail's usage of TLS is not end-to-end encryption. Certificates in X.509 form are used to form
this trusted connection.
To use TLS, sendmail needs a source of random information. This Internet Express release includes
both Tru64 UNIX Version 5.1A and 5.1B sendmail binaries to allow access of the appropriate
random number generators. In version 5.1B, the Sendmail binary uses the native /dev/random
device, while the Tru64 UNIX Version 5.1A operating system version includes support for egd.
114 Mail Delivery Administration