DNS flag day 2020
One of the most critical parts of MailMum is to provide DNS service, which handles IP blacklisting for our customers. They are the primary service our customer’s mail servers are using.
As the DNS flag day 2020 directed to operational and security problems in DNS caused by Internet Protocol packet fragmentation, we’ve tested all our DNS services to align these rules.
Why you should test too?
DNS is a distributed system and one of the most critical parts of networks. If DNS fails; most services stop working as they rely on DNS resolution. Most companies run at least one DNS server our use a provided DNS server for their company. Some run thousands to offer their employee and their customers DNS services.