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Sendmail 8.13.3 Special Release Upgrade

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Product details and specifications
Obsolescence plan for HP-UX Sendmail 8.13.3 on HP-UX 11i v3:

HP-UX Sendmail 8.13.3 on HP-UX 11i v3 will reach end of support (EOS) by 31st July 2017. HPE recommends you to migrate to the latest HP-UX Sendmail 8.15.2.

Note: POODLE vulnerability:

To prevent POODLE vulnerability, SSL3 protocol has to be disabled by mentioning required TLS protocol version in /etc/mail/ file as below.


Ex. D{tls_version}TLSv1

Sendmail is an electronic mail transfer agent (MTA) that sends and receives mail messages to and from homogeneous and heterogeneous networks. Sendmail sends a message to one or more recipients or addresses, routing the message over appropriate networks. Starting with Sendmail 8.13.3, Sendmail can also be used as a mail submission program (MSP).

When Sendmail acts as an MTA, it listens on port 25 and is primarily concerned with routing mail from other mail servers. Simultaneously, Sendmail can also accept mail messages from local users, thereby acting as a MSA. Sendmail 8.11.1 introduced the conceptual separation of these two roles, while Sendmail 8.13.3 handles these roles independently by default. When operating as an MSA, Sendmail 8.13.3 listens on port 587 instead of port 25. Sendmail 8.13.3 accepts a mail message from an Mail User Agent (MUA), parses the mail message, and forwards the mail message through Simple Mail Transfer Protocol (SMTP), to Sendmail 8.13.3 that is running as an MTA. Sendmail 8.13.3 is by default a set-uid program. For better security, you can run Sendmail 8.13.3 as a set-gid program. For more information on configuring Sendmail 8.13.3 as a set-gid program, see "Sendmail 8.13.3 Release Notes" document available at HPE Support Center.

Table 1 summarizes the Web upgrade version of Sendmail available on the HP-UX 11i v1, HP-UX 11i v2, and HP-UX 11i v3 operating systems.

Table 1: Sendmail Web upgrade Versions Available on HP-UX Operating Systems

      Operating System     Available Product
Version Number
    Bundle Version
    Release Date  
 HP-UX 11i v1 a 8.13.3    B.  March 2010
 HP-UX 11i v2 8.13.3    B.  March 2010 
 HP-UX 11i v3 8.13.3    C.  March 2010  

a The Web upgrade version of Sendmail 8.13.3 now supersedes Sendmail 8.11.1 on the HP-UX 11i v1 operating system.
b The Sendmail releases B. and B. were intermediate releases. You may not find these release names mentioned in any documentation available with B. and B. because B. and B. did not provide a complete solution.

NOTE: HPE recommends that you remove any unofficial (UNOF) Sendmail patch before installing this version of Sendmail 8.13.3 Web upgrade on an HP-UX 11i v1, HP-UX 11i v2, or HP-UX 11i v3 operating system.

Sendmail 8.13.3 Features

Sendmail 8.13.3 contains the following features:

  • Security features:
    • Enhanced security, as Sendmail 8.13.3 now runs as a set-gid program.
    • Support for secured mail transaction using STARTTLS.
    • Cyrus Simple Authentication and Security Layer (SASL) v2 support.
  • Anti-spamming features:
    • Support for Mail Filter (MILTER) APIs for advanced and effective mail filtering.
    • Message Quarantining
    • Enhanced DNS Black Hole List (DNSBL) option.
  • New map socket to query maps through TCP/IP sockets.
  • Performance Features:
    • libsm, a C library of general purpose abstractions.
    • Simple Mail Transfer Protocol (SMTP) Pipelining (RFC 2920)
    • FastSplit
    • Connection Caching
  • New Queue feature
  • Lightweight Directory Access Protocol (LDAP) enhancements to support recursion and LDAP URL support
  • Support for FallbackMXHost option
  • DNS maps
  • Support for Deliver By SMTP extension (RFC 2852)

Product Documentation

For more information on Sendmail 8.13.3, see the following documents available at HPE Support Center

  • Sendmail 8.13.3 Release Notes

  • Sendmail 8.13.3 Programmer's Guide

  • HP-UX Mailing Services Administrator's Guide

Additional product information
Product #: SMAIL813
Version: 8.13.3
Software specification: HP-UX 11i v1(Sendmail-Upgrade_B.
HP-UX 11i v2(Sendmail-Upgrade_B.
HP-UX 11i v3(HPUX-MailServer_C.