Reason for using IMAP over POP3
These days most people like to retrieve their e-mail from their desktop computer AND their smart device, mobile phone, tablet and phablet etc. Using IMAP ensures that what they see, whichever device they’re picking their e-mail up from is uniform and consistent.
Firstly, POP3 and IMAP are the two most popular formats for delivering e-mail. (There are others).
IMAP (Internet Message Access Protocol) provides your e-mail from it’s own mail server. Your e-mail is on this server that you refer to when you view your e-mail.
You can access (look at) your e-mail in a number of different ways.
NOTE: web based e-mail clients such as GMail routinely automatically scan your e-mails for content and keywords and phrases. In this way they can target advertising to you.
My preference would be to set-up IMAP accounts and have my customers retrieve their e-mail from their preferred e-mail client.
If the customer was away from the office they could pick their e-mail up from their own webmail by going online and typing “http://www.yourwebsite.com/webmail”. This using Horde or Squirrelmail etc.
They could integrate more easily their mail into their Smart phone, Phablet or Tablet as IMAP is slightly easier to configure on these devices.
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