Esvalabs Security Blog
Stay up to date with the latest findings for our Esvalabs
Esvalabs Security Blog
Stay up to date with the latest findings for our Esvalabs
Yesterday most of the mail administrators, organizations, and MSPs worldwide suddenly found that their mail was being rejected as it reported as being listed in the blacklist at bl.spamcop.net. SpamCop, a wholly-owned subsidiary of Cisco Systems, provides a Real-time Blackhole List (RBL) that mail servers can use to determine if incoming mail should be marked as […]