Support Page Get a New Look

In the never-ending quest to make the No-IP site easier to use and navigate, our main support page has a brand new look.

New features include links to the most popular support guides and also the most popular entries from our list of frequently asked questions (complete with answers 😉 ). We’ve included links to our popular online tools that let you check if the specific ports you need are open at your location, see your current IP address, check your email server for open relays, etc.

We hope that the new design of our support page makes it easier for you to find the help you need.

Power to the Mail Service

Due to the overwhelming popularity of our mail service we have recently added capacity to is now on two different networks load balanced with round-robin DNS. In this configuration we can adjust load between the networks dynamically by updating the DNS record. This technique is a great use of’s round-robin DNS feature that you can use with your domains that have servers at multiple sites or with multiple IP addresses.

This also means that if you currently firewall traffic to your Reflector server you’ll need to update your firewall rules.

To avoid problems with future changes  to the mail service add these two networks to your firewall: (netmask (netmask

Anti-spam ECR gets custom challenge emails

Today lauched custom challenge emails for Anti-spam ECR. If you don’t know what Anti-spam ECR is, you should take a look at it. Basically, instead of having all kinds of automated sources slinging email at you, Anti-spam filters out the non-human ones. If you do want messages from automated sources you can easily add them to your authorized senders list. There are a host of other features as well. Anti-spam ECR simple, easy, and it keeps your Inbox spam free. And now it is even more customizable!

Get Your SSL Certificates Here!

Get ’em while they’re hot! Fresh new SSL certificates available right now at No-IP™. No-IP announces the ability to offer the security of Secure Link SSL Certificates to our customers. A Secure Link SSL certificate from shows your customers that your web site is safe for them to submit their credit card and other personal data. No matter if you have a static or dynamic IP address, a big business or small, No-IP offers the best value in SSL certificates.

The Secure Link SSL Certificates offer comprehensive authentication procedures (domain name and identity verification) for a high level of security protection. It confirms that you are who you say you are in a virtual world, encrypts information sent to and from your web server and protects data from tampering. It’s ideal for any web site, intranet or extranet that needs the safety of secure online transactions.

Unlike some cheap alternatives that claim to offer your customers security, a Secure Link SSL Certificate is only issued after a comprehensive validation process. To ensure proper issuance of your SSL certificate, the following validation steps will take place before a certificate is issued:

      A) We verify that the Account Holder Information provided in your application:

      • Matches the registrant information in the Whois database.
      • Corresponds with credible providers of business information such as Dun & Bradstreet, Articles of Incorporation, Business Licenses, etc. If any other documentation or information is required during this step, we will contact you.

B) We will also telephone your organization to confirm:

      • An order was placed for your SSL certificate.
      • The person who placed the order is authorized to do so.

For more information about our SSL certificates and to see which one is right for you, please follow this link.

SSL encryption for Alternate-port SMTP

Today No-IP lauched SSL encryption for Alternate-port SMTP. Now clients like Outlook and can use an encrypted channel to submit their email. Simply set the correct port and turn on SSL encryption in your client and you are done! The ports are these:

Outlook and Outlook Express (implicit SSL clients)
Use port 465 and check the Use SSL Encryption check box.

All other modern email clients, STARTTLS enabled (explicit SSL clients, e.g. Thunderbird,, Evolution)
Use port 3325 or port 587 and check the Use SSL Encryption check box.

This information can be found in the No-IP FAQ item, Does No-IP provide encrypted mail transfer (SSL)?

And, as a bonus, here is a little geek knowledge. Implicit SSL means that SSL is implied, that from the moment the connection is made all data is going to be encrypted. Explicit SSL means that the client must explicitly request SSL. Basically, when a connection is made the server announces that it can do SSL and the client says that it wants it. From that point forward the channel is encrypted.

Implicit SSL is used for SMTPS on port 465, but that standard is deprecated in favor of the more adaptable STARTTLS (RFC 3207). TLS stands for Transport Layer Security and has become a standard for protocols like SMTP. STARTTLS offers the convenience of one port with both plain text and encrypted channel and in that right is more versatile than implicit SSL. Most modern email clients support STARTTLS, save Outlook and Outlook Express. Perhaps in the next version.

Over 3,000,000 Served! is proud to announce that we recently signed up customer number 3,000,000 (yes THREE MILLION)!

That’s 3,000,000 users who have found No-IP to be the perfect partner for their presence on the Internet. Whether it’s our industry leading Dynamic DNS services, our robust Managed Mail solutions, or any of our other offerings, we’re glad to be the service provider of choice for so many of you.

Our staff works continuously to maintain our infrastructure and make sure that is there when you need us. We constantly strive to bring you innovative products that enhance your ability to function online and we’re overjoyed to see the results bear fruit in an ever-growing base of users.

This tremendous growth wouldn’t be possible without the support of our loyal customers who recommend us to their co-workers, friends, and family: For that we give you our thanks!

Happy Holidays from the No-IP team and we look forward to serving you in 2006.

NS2 Moved has been moved to a new IP address. The new ip address is  Please take this time to update your DNS and firewall configurations if you are using the No-IP Squared service.

The old address will continue to provide resolution while customers migrate to the new address.  We will be disabling the old address on December 6, 2005.

This is part of our planned network upgrade at our datacenter in San Diego.

NS4 Moved has been moved to a new IP address.   The new ip address is  Please take this time to update your DNS and firewall configurations if you are using the No-IP Squared service.

The old address will continue to provide resolution while customers migrate to the new address.  We will be disabling the old address on December 6, 2005.

More Enhanced and Free Domains to Choose From

We have recently added a handful of new domains to the No-IP Enhanced service. The new domains include:


And one more for users of the No-IP Free service:


Take advantage of these less impacted domains and find the perfect name for your site. Check out No-IP™ Enhanced and Upgrade today!

New Article on Hardware Dynamic DNS Clients

From time to time we’re asked about using hardware Dynamic DNS clients built in to some routers. While initially that seems to be a great idea, it can really be troublesome to debug customer problems when they’re using firmware DDNS implementations.

We’ve posted a new article in our Guides and Tips section that fully describes the advantages of the No-IP DUC software. You can click here to read the complete article.