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.
You can use SMTP submission, direct send, or SMTP relay to allow a multifunction device, printer, or application to send email using Office 365 and Exchange Online. This topic explains how to send email from devices and business applications when all of your mailboxes are in Office 365.our device or application does not meet the requirements of SMTP client submission, such as TLS support. Office 365 does not allow you to send bulk email or newsletters via SMTP client submission. Direct send allows you to send a higher volume of messages.