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I have a GoDaddy hosting account with a few POP3 e-mail accounts. (This is for personal use.) I want to transition to IMAP - to keep all devices synced. However there is an extra charge for that which I would like to avoid.

So my plan is to setup a server on my network that automatically downloads from the POP3 accounts, stores the e-mails locally, and makes them available via IMAP. I have a DynDns account, so I shouldn't need a static IP.

Is there existing software to do this?

  • What OS do you plan to run this on? As the server itself isn't the point here, what you need is something like Fetchmail, which retrieves mails from POP3 and "feeds" them to your IMAP server. To recommend a matching tool (Fetchmail runs on *nix), we need to know your OS requirements and, maybe, the budget available (or whether the software must come free of charge). Btw: As that script would most likely run on your server, static/dynamic IP is not an issue at all :) – Izzy Nov 11 '16 at 11:02
  • @Izzy Sorry, forgot to mention OS: I was thinking of using a dedicated RPi running Raspbian. Also, I have a Windows 7 box I can use. I will take a look at fetchmail. Thanks. – Johnny Mopp Nov 11 '16 at 11:12
  • On a Pi, fetchmail should be the perfect candidate. You're most likely running on Raspian there, so it should even be in the repos, and a simple apt-get install fetchmail should suffice for installation. As for the mail server, I'd then recommend dovecot; I'm running that on my BananaPi and am pretty much pleased: dovecot+postfix+amavis (and some additions), handle the load for 4 domains here, including primary MX. If that sounds interesting for you, let me know and I check my notes at home for a fitting answer; but I'd suggest splitting that for a separate question then (1xfetchmail,1ximap) – Izzy Nov 11 '16 at 13:10

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