Distinctive protocols during the sending system: SMTP is used to send email, POP and IMAP to get mail Below, we’ll provide you with a deeper explanation of how POP and IMAP do the job And exactly how they differ from SMTP. At Twilio SendGrid, we do the job with https://www.upwork.com/services/product/development-it-setup-web-conferencing-system-using-bigbluebutton-and-scalelite-1446381070830473216?ref=project_share&tier=0