General Information

Acceptable Use Policy

Before creating an account with DynDNS, please read our Acceptable Use Policy. In particular, please note that you may have only one free account at any time, even if you administer accounts on behalf of others. However, you may have as many paid accounts as you desire. If you wish to have multiple accounts, we recommend purchasing an Account Upgrade. Please also note that hosting copyrighted materials using filesharing services such as torrent trackers is likewise prohibited.

Connection Problems

If you are having trouble connecting to services at your Dynamic DNS or Custom DNS hosts, please see our article on common networking problems and solutions here. Our Knowledge Base also contains a plethora of information on a wide variety of topics, from DNS and email to web servers.

Login

Lost Password

If you have lost the password to your account, you can reset the account's password here. An email will be sent to the address on file for the account to confirm the reset. If your account's email address is invalid, and the account is free, please contact support to request account deletion. If the address is valid, we cannot make changes to the account.

If the account has paid services, please contact support and provide the 7th, 11th and 13th digits of the credit card used to purchase items on the account, along with the new desired email address. We can use this billing information to verify your identity and change the address for you, allowing you to reset the password to the new address and regain access.

Confirmation Email

If you created a new account but did not receive the confirmation email, please double-check your spam and bulk mail folders to ensure the message was not accidentally filtered out. You will need to ensure our support@dyndns.com email address is properly whitelisted in your anti-spam settings, then use a reset password email to confirm the account.

If you still cannot receive the confirmation email at that address, you can wait 48 hours for the account to be removed and recreate it with a new address, or you can create a second account with a new address and allow the original to expire.

Cookies

If you are having trouble staying logged into your account, you most likely do not have cookies properly enabled. Our login system uses cookies to uniquely identify your web browser and login session after you enter your username and password on our site. These cookies do not store your password or any other private information, and are perfectly safe. Please ensure cookies are enabled in your browser, and that dyndns.com is specifically whitelisted to avoid login issues.

Account Deletion

If you have accidentally closed your account, and your account contained paid services such as an Account Upgrade or Custom DNS zone, please contact our billing team and provide your username and billing information such as invoice numbers. If you had a free account, you may simply recreate your account at any time.

Account Settings and Information

Timezone

You may change the timezone and time format displayed in your account here.

Email and Password

From within your account, you may change the email address and change the password for your account at any time. You will receive a confirmation email for either change. If you do not have access to the account, you can use the reset password form to regain access. If you do not have access to the email address or the email address is invalid, and you have paid services on the account, please contact our billing team with the username and 7th, 11th and 13th digits of the credit card used to purchase services for billing verification, in addition to the new email you wish to use for the account.

Change Username

You may change your account name at any time on the Change Username page. Username changes are $10.00 USD.

Close Account

If you wish to close your account, you may close your account here. Please note that closing the account does not automatically refund services. If you wish to receive a refund for services within the first fifteen days of purchase, please contact our support team via the online support form and request a refund, including the invoice numbers of the services in question. Services beyond the fifteen-day refund window cannot be refunded to a credit card; please see our Refund Policy for more information. Please also note that accounts containing domain registrations cannot be closed.

Order History, Billing Profile and Vouchers

You can view all purchases made on your account on the Order History page (including a printer-friendly version of your invoices), and view your stored credit cards and vouchers on the Billing Profile and Vouchers page.

Mailing Lists

You may subscribe or unsubscribe from our mailing lists at any time on the Mailing List Management page. You may also send a request to our support team to have your account unsubscribed from any lists.

Web Hosting and Mail Hosting

At this time, DynDNS does not provide web hosting or mail hosting services. We do provide a number of mail-related services in our MailHop suite, such as outgoing mail relay with MailHop Outbound, incoming spam scanning, virus elimination and alternate port relaying with MailHop Relay, mail queuing during downtime with MailHop Backup MX, and redirecting mail to mailboxes hosted elsewhere with MailHop Forward. We do not provide any form of web hosting services at this time, though we do provide web redirection services with WebHop.

China and Hong Kong

In September of 2002, the PRC began a policy of blocking domains which it found to contain certain types of information. Because our service provides a way to easily create new domain names and map them to any IP address, our service was also targeted for this blocking. On March 3, 2003 we determined that the domains:

  • dyndns.org
  • ath.cx
  • dnsalias.com
  • dyndns.tv
  • homeftp.net
  • homeip.net
  • homeunix.com
  • homelinux.net
  • homelinux.org
  • merseine.nu
  • mine.nu
  • serveftp.net

were included in this blocking. The Chinese national firewall is an ever-changing entity, and as a result it is impossible to tell which of our domains are currently blocked at any given time, nor are we able to determine for how long a domain will remain blocked or unblocked. We have had varying reports from customers within China; on more than one occasion, a customer in Hong Kong was able to connect and update his services while another customer just across town was completely blocked. Because of the PRC firewall, we cannot guarantee the availability of our services for visitors in China or Hong Kong.

You can learn more about internet censorship in China here.