Interfax offers support by email and phone. To contact us with non-urgent issues, you will be best served using the form on the contact page. For more urgent issues, feel free to contact us by phone on the numbers listed on that page.
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Important information on handling HTML content by InterFAX
With Microsoft soon phasing out Internet Explorer 6 (IE6), we're upgrading our fax rendering machines to use Internet Explorer 10 (IE10). This could lead to changes in how your faxes look when sent through InterFAX. We recommend testing our new rendering machines to ensure that all clients are satisfied with their images once the upgrade goes into effect. To determine whether you require adjustments in light of this development, please click here.