Support - No-IP Support Center
Alternate-port SMTP FAQ 
What about SPF with Alternate-port SMTP?
If you are creating an SPF record for your domain that uses Alternate-port SMTP, simply add this token to your SPF string: include:no-ip.com. This way if the IP address of smtp-auth.no-ip.com ever changes your SPF record will remain valid. An example SPF record might be:
v=spf1 include:no-ip.com -all
Getting Started?
- We recommend you start with our Getting Started Guide which will walk you through all the basic steps to getting going with our service.
Still Need Help?
- Having trouble finding the answer you are looking for in our online support documents? First try our basic trouble shooting guide. If you still can't find the answer to your question feel free to open a Support Request or Contact Us.
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