Email is one of the most effective ways to stay in touch with your co-workers, friends and family, or business partners. It allows you to send messages from computer to computer over the Internet. The links between these computers are called email servers. Sending email between two IP addresses that are separated by many computers can actually be challenging if the internet protocol (IP) of the sender and receiver aren't compatible with each other. Having a wrong or improper mail server configuration could end up with your important emails getting lost along their route to the recipient's inbox. This is why it is crucial for all email clients to use the right
smtp port number for sending and receiving email messages which will avoid any connection issues and ensure delivery for outgoing messages and receipt of incoming e-mails.