IMAP - An introduction
IMAP and POP3 are protocols that allow you to download email messages from your Zoho Mail server and access them with desktop email clients like Outlook/ Mac Mail and/or mobile email clients iPhone/ Android email apps. Zoho Mail can be configured on any standard IMAP email client using the IMAP and SMTP Server Settings.
IMAP is more recent than POP and allows a two-way synchronization between the email clients and your Zoho Mail account. IMAP is recommended when you want to access the same account from multiple email clients.