OpenSRS recommends that you include them in your SPF record by making a few DNS modifications. This will help you minimize spam as well as prevent authentication failures for your emails sent via OpenSRS.
Creating an SPF record for OpenSRS
The email services provided by OpenSRS are segregated into 2 clusters: Cluster A and Cluster B. OpenSRS uses an “include” mechanism that you need to incorporate in your SPF record if you belong to either of these clusters.
For Clusters A and B
If you have a hosting registration and want notifications pertaining to your outbound emails sent from OpenSRS to be sent to registrants on behalf of resellers, you need to include the following mechanism:
If you want to view the list of updated IP addresses for clusters A and B, please go through OpenSRS’s SPF guide. However, you can replace the IP addresses with the single include mentioned above, in your SPF record for clusters A and B.
Tips for publishing for your OpenSRS SPF record
- An SPF TXT record for OpenSRS will have the following syntax:
mydomain.com TXT v=spf1 include:_spf.hostedemail.com -all
- Publish this record in your DNS records section for your respective domain.
Note: If you don’t have an SPF record previously for your domain, simply publish the above-mentioned record to enable SPF for outgoing emails using OpenSRS. If you do have an existing SPF record in your DNS, you need to modify it to include OpenSRS, as shown below:
Previous SPF record: v=spf1 mx -all
Modified SPF record: v=spf1 mx include:_spf.hostedemail.com -all
- Save changes
- Wait for 72 hours to allow your DNS to process the changes
Finally, you can look up your record using our SPF record lookup tool, and enable DMARC for your domains to protect against spoofing and impersonation: take a DMARC trial.