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POP3 vs. IMAP

POP3 and IMAP are both ways to download e-mail messages from MRSware to mobile phones, 3rd-party e-mail programs, and all sorts of Internet enabled devices. While they both achieve the same purpose -- let the User access their e-mail wherever is most convenient -- they do so in a different way. The primary difference is that POP3 is simple and available on almost every device, while IMAP is more complex but can interact bi-directionally with the server.

To help sort out the difference, and help you make a decision on which best fits your needs, here is a table summarizing some of the most common feature differences that you may see:

Feature
Download messages from Inbox

Download messages from any folder in MRSware
​
​Upload Outbox to server for sending

Synchronize folders on client to folders in MRSware (for example, Drafts created on the device show in the Drafts folder in MRSware)

Show Sent Items from client in MRSware’s Sent Items folder

Mark messages as Read in MRSware when Read on client

Delete messages from MRSware when Deleted on client​

Deleted Items are placed in the Deleted Items folder in MRSware

​Support multiple clients at the same time (for example, both Outlook and Blackberry can download messages at the same time)

​Available from almost all cell phones and Internet devices

​Available from most smartphones, PDAs, and desktop software

​
POP3
Yes

​No

Yes

​No



​No

No​

​Yes

​No


​No



​Yes

Yes

​
​IMAP
Yes
​
Yes

Yes

​Yes



Yes

Yes

​Yes

​​Yes


​Yes



​No

​Yes

​
In most cases you would choose IMAP over POP3, if it is available. You might not choose IMAP in several cases, such as when multiple people access a single mailbox and it would be undesirable to mark messages as read all the time.

Availability

POP3 and IMAP is available to subscribers of the Plus Package.