HP Instant Capacity Version 10.x User Guide (5900-1581, March 2011)

on the system queries a DNS server for the name of the email server to forward the email to
(for the first hop) in order for the email to reach the final destination (hp.com).
In all cases, the following requirements must be met:
• HP mail servers that receive email expect the host (the mail server in the last hop before
reaching HP) to be properly registered in DNS. If not, the HP mail server rejects, or “bounces”,
the email.
• The From field (email address) in the email message must be known by the receiving mail
server (that is, the hostname is registered in DNS and advertised on the internet). Otherwise,
the receiving mail server at HP rejects the email. This field in the email can be configured with
a simple one-line modification (DM) to the /etc/mail/sendmail.cf file.
In some DNS environments, changes to the default /etc/mail/sendmail.cf file might
not be needed to properly route email from the Instant Capacity system to HP.
• In some environments, configuring your system to properly send email from the system to HP
can require as little as a two-line edit (or none) to the /etc/mail/sendmail.cf file. In
most organizations, configuring mail, including sendmail and DNS configurations, is usually
handled by the IT team.
Example 21 Example Edit to Sendmail Configuration (/etc/mail/sendmail.cf)
DMmy_company.com
DSmailhub.my_company.com
In this example:
• The Instant Capacity system’s hostname is myICAPsystem.my_site.my_company.com.
• The From field of the email is set to my_company.com rather than to the exact hostname of
the Instant Capacity system. This is because most organizations do not advertise the names
of their internal servers to the internet; however, they do advertise a few (select) high-level
domain names.
• The Instant Capacity system is not advertised to the internet, but hostname mycompany.com
is advertised and reachable from the internet.
• Email is forwarded from the system to a mail relay host called mailhub. The mail server
called mailhub can either be directly connected to the internet and send the email directly
to HP, or it can forward the email to another mail server on its way to HP.
NOTE: Any bounced Instant Capacity email messages are sent to the adm mailbox.
Steps to Confirm or Diagnose Email Configuration
After you configure your Instant Capacity system to send email over the internet, follow these steps
to confirm the email configuration or to aid in debugging the configuration:
1. Send an email message from your system to an email address in the same domain (intranet)
and confirm receipt of the email message.
2. Send an email message from your system to an email address outside of your domain (to the
internet, for example, to a yahoo or hotmail email address) and confirm receipt of the email
message.
3. Send an email message from your system to someone at HP (for example, an HP representative
in a local account team) and confirm that the person at HP received the email message.
4. As root, execute the following command:
/usr/sbin/icapnotify <reply_address>
5. If all the previous steps are successful, but asset reports are still not visible on the HP portal,
examine your email configuration to determine whether outgoing messages are automatically
being modified or appended, for example, to include something like a privacy notice. Additions
or modifications to encrypted asset reports might cause them to be rejected by the portal.
164 Special Considerations