What if I send a fax without an attachment or a cover note? 17 December 2020 11:57 Follow If you send a fax without an attachment and without a cover, it will be an error since there is nothing to send. Related articles How do I login to eComfax? I can not login to eComFax! When I send a fax from my email account what are the types of supported files? How to send a normal fax via the web platform. I have a shared fax and voice line. What should I do? Comments 0 comments Article is closed for comments.