These changes cause narrowing of the lumbar spinal canal which is known as spinal stenosis. Spinal stenosis is like the lime build-up on the inside of a garden hose. Over time, it narrows the diameter of the hose, just as spinal stenosis narrows the spinal canal.
SMTP Protocol: The SMTP (Simple Mail Transfer Protocol) protocol is used by the Mail Transfer Agent (MTA) to deliver your eMail to the recipient's mail server. The SMTP protocol can only be used to send emails, not to receive them.
(Source: Wikipedia) A remote connection from a Windows PC to another Windows PC is easy and can be done without installing any additional software. The connection uses Remote Desktop Protocol (RDP) to let two computers, a remote host and a remote client talk to each other.