SoftScan's research found that 88.5 percent of all e-mails it scanned during the month of May was spam. This stat is relatively unchanged from recent months, SoftScan said, although virus levels dropped slightly to 1.4 percent of e-mails.
The e-security firm said efforts to curb spamming, such as the recent arrest of spammer Robert Soloway, dubbed 'Spam King', are doing little to reduce the amount of unwanted e-mail reaching inboxes.
"Some people are predicting that spam levels will drop with the arrest of the so-called Spam King this week. However, I always think it's a mistake to underestimate a spammer, it's a sure fire way of finding yourself ambushed," said Diego d'Ambra, chief technology officer of SoftScan.
He warned that spammers, like everyone else running a business, will have a back-up plan in place to deal with challenges.
"Although it has been relatively quiet on the spam front for the past eight weeks, a sudden spike that caused a 25 percent increase at the beginning of the week has shown that the spammers are still out there and mean busines