Can I authenticate based on my IP address only?

In some limited circumstances we may (and at our discretion) be able to provide IP based authentication.

Please note that IP authentication is not 'recommended' and should be avoided where at all possible. It is typically designed to allow use with legacy hardware or applications that cannot support SMTP authentication (with a username / password) and where no other local infrastructure exists.

In addition:

Your AuthSMTP account must be at least AuthSMTP 10
The IP address must be static and only used by a single organisation
All addresses you send from must still be authorised as 'from' addresses in our Control Panel
It should not be relied upon and may have to be removed due to security or operational issues

If you wish to enable IP authentication please raise a support ticket on your account via the Control Panel.

Are you having a problem sending email or looking for a reliable SMTP server?

AuthSMTP is the outgoing SMTP email service for your e-commerce website, mailing list or email program.

It works on most current computers or devices and solves many of the common problems with sending email such as relaying denied errors or blacklisting issues.

With instant setup, a money back guarantee and very low cost starter accounts you can test and start sending email in minutes with no risk.

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