Create Domain Name Service (DNS) Sender Policy Framework
(SPF) records to identify all of the Internet domains you use in SmartCloud Notes® Internet
addresses. These SPF records should specify that the SmartCloud Notes servers
are permitted to send email on behalf of all of your domains.
About this task
IBM uses SPF record definitions to identify the SmartCloud Notes servers
that can send mail to the Internet on behalf of our customers. You
can easily include these SPF records in your domain-specific SPF records
to simplify the task of specifying that SmartCloud Notes servers
are permitted to send mail on behalf of your domains. Typically
your Domain hosting service allows you to create an SPF record and
will provide instructions. In some cases, for example, there might
be a wizard that walks you through the process. There are many mechanisms
for identifying the set of servers that are permitted to send mail.
The examples provided show how to use the include mechanism
in SPF records to identify the SmartCloud Notes servers.
Note: The
DomainKeys Identified Mail (DKIM) email validation system is not supported
for SmartCloud Notes.
When
you create your SPF records, be sure to include the
SmartCloud Notes SPF
record in addition to any other mechanisms used to identify other
servers that are sending mail on behalf of your domains. Depending
on your data center, use one of the following
include statements
in your SPF record definition:
Table 1. SPF Record Statements| Data Center |
Statement |
|---|
| North American |
include:_spf.notes.na.collabserv.com |
| Asia Pacific |
include:_spf.notes.ap.collabserv.com |
| European |
include:_spf.notes.ce.collabserv.com |
Additionally, if there are multiple servers that send
mail on behalf of your domain, it is important to include all of the
servers in the definition.
For example, if all mail for the renovations.com domain
is sent and received by the service, the SPF record only needs to
identify
SmartCloud Notes servers
as permitted to send mail on behalf of this domain.
v=spf1 include:_spf.notes.na.collabserv.com ~all
In another example, the inbound mail is accepted by
servers in the service using DNS MX records that reference the
SmartCloud Notes service.
But there are also SMTP servers in the on-premises environment that
might send outbound mail. In this case, there is no need to additionally
specify the MX mechanism in the SPF record definition because they
are already defined by the included
SmartCloud Notes SPF
record, but all other servers sending mail on behalf of the domain
must be included. If there is a single SMTP server named mail.renovations.com,
the SPF record could be defined with the following value:
v=spf1 a:mail.renovations.com include:_spf.notes.na.collabserv.com ~all
Your
Domain hosting service is a good source of additional information
about SPF records and the syntax to use. For additional information
about other mechanisms, see your Domain hosting service website or
the Sender Policy Framework website at http://www.openspf.org/.