IMAP and POP3 are the most widely used email retrieval standard protocols.
Almost all current email clients and servers support both protocols.
This post fromMiniToolprovides information about IMAP vs POP3.
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Both protocols include spam and virus filters.
With Microsoft 365’s SMTP, you could configure your email client or WordPress website to send email.
Here is how to configure Office 365 SMTP prefs.
Since IMAP handles message retrieval, you will not be able to send emails using the IMAP protocol.
Instead, IMAP will be used to receive messages.
POP3 is another protocol for receiving email on a single equipment.
Using POP3 means your email can be accessed offline and deleted from the server.
In this way, IMAP is actually a form of cloud storage.
This is cached locally so you’ve got the option to work on your gadget.
When using POP3, the email client first connects to the email server.
After a successful connection, it grabs all the mail on the server.
Finally, it deletes the offending message from the email server before disconnecting.
This means that these messages only exist on the gadget you downloaded them to.