The Cloud Foundation and Friends of Animas are petitioning the U.S. Fish and Wildlife Service to declare wild horses threatened or endangered in North America under the Endangered Species Act.
Step #4: In order to find the recipient's server, the sender's SMTP server has to communicate with the DNS, or Domain Name Server. The DNS takes the recipient's email domain name and translates it into an IP address. The sender's SMTP server cannot route an email properly with a domain name alone; an IP address is a unique number that is assigned to every computer that is connected to the Internet.
The IP address assigned to the host has a network ID part, which identifies what IP subnet that host is on. This is in the high-order bits of the IP address. How many high-order bits are allocated for this purpose is determined by the netmask. The remaining low-order bits of the IP address are the host ID. So, if your host's IP address is 1.2.3.4, and the netmask is 255.255.255.0, then the network ID part of that IP address is 1.2.3.0/24 (the /24 means that only the high-order 24 bits are significant) and the host ID part of that IP address is the remaining low-order byte .4.