Nearly 7 of 10 email users have had images suppressed in emails they receive, but the same proportion among those users regularly do something about it.

Some 65 percent of U.S. email users have encountered default image suppression, writes DM News, citing data from email marketing firm Epsilon Interactive. Some 69 percent of those users, however, manually activate the images - and 94 percent have done so at some point.

Some 90 percent of users at least sometimes activate images in emails they receive from friends and family; 69 percent do so in the case of email statements or order information from senders they buy from; and 57 percent do so for opt-in promotional messages.

Some 31 percent activate images in the case of promotional messages that users have not opted to receive - if they recognize the name of the senders and trust them.