Sender Policy Framework (SPF) is a technical standard and email authentication technique that helps protect email senders and recipients from spam, spoofing, and phishing. Specifically, it defines a way to validate that an email message was sent from an authorized mail server in order to detect forgery and to prevent spam.
SPF record
OpenSRS's email service is provided through two clusters, cluster A and cluster B. For both the clusters, please include _spf.hostedemail.com in the SPF record.
v=spf1 include:_spf.hostedemail.com ~all
If you need help creating the SPF record, please refer to the SPF creation wizard. After creating the SPF record as a TXT entry on the domain, you can validate the record here.
Email cluster A
As of May 15th, 2021, cluster A will use the following new IPs in addition to the existing ones.
| Existing IPs |
Updated IPs |
|
| All outbound email for both regular deliveries and filter-only deliveries originates from | 216.40.44.0/24 |
64.99.140.1/24 216.40.44.0/24 |
| All outbound forward and autoresponder traffic originates from | 216.40.42.17 (the IP address has matching forward and reverse DNS of forward.hostedemail.com). |
64.99.140.10/32 216.40.42.17 |
| All migration traffic originates from | 216.40.42.15 (fetchmail-snat.a.hostedemail.com). |
64.99.140.16/29 216.40.42.15 |
Email cluster B
| IP address | |
| All outbound email for both regular deliveries and filter-only deliveries originates from | 64.98.42.0/24 |
| All outbound forward and autoresponder traffic originates from | 64.98.36.17 (the IP address has matching forward and reverse DNS of forward.b.hostedemail.com) |
| All migration traffic originates from |
64.98.36.15 (fetchmail-snat.b.hostedemail.com) |
Email notifications to registrants
To allow outbound email notifications from OpenSRS sent to registrants on behalf of the reseller, please include registrarmail.net in the SPF record of the domain configured as the technical email address of a reseller account.
include:registrarmail.net
2 Comments
Hello,
We have the following ip configured on all domains DNS MX A record: 216.40.42.4
It is not clear to me to which ip address to migrate.
We are on cluster A as far as I know.
I'll appreciate your help.
Thanks.