Reasons of Sending Mails Slow with Webmail

Phenomenon: Send mails slow via Webmail, but it is fast with Outlook.

We can analyze this problem from the sending processes of Webmail and Outlook.

Outlook sending process: Outlook compose -> Outlook direct encoding -> Outlook send -> AAMail SMTP receive -> AAMail SendMail.

Webmail sending process: Webmail compose -> Webmail save -> Webmail encoding -> AAMail SendMail.

Thus it can be seen that Outlook is faster than Webmail. Because it has to go through an encoding process when using Webmail to send mails, and then the mails could be sent. So the sending speed of Webmail is slow.