u/cuddlecuffs

Queries about Proton’s easy transfer feature for importing emails and folder structure from elsewhere

Hi folks. I recently signed up to Proton and have just finished the automated transfer of all emails and folders from an account I’ve had with my ISP for nearly 25 years. I did this because their email service is being shut down soon as they want to focus on just providing internet connection.

I did the transfer with no issues via IMAP as instructed by Proton’s customer support.

  1. Will all of these emails I’ve imported into Proton Mail disappear once my ISP deletes my emails from their server and closes things down?

  2. Similar query: If I wanted to preempt my ISP’s service closure and log in to my ISP’s webmail service to delete every email I have, would this also make them disappear from my Proton Mail?

  3. OR… Are imported emails standalone copies that aren’t connected to my ISP’s server and won’t be going anywhere?

  4. Now that this easy transfer feature with Proton is complete, does this mean that Proton Mail will continuously fetch new mail that gets sent to my ISP email account (while it still exists)?
    Therefore acting like a third-party email client such as Outlook or Thunderbird?

  5. I get confused with POP and IMAP and which one of these is a mirror connection that deletes an email from third-party email clients if you delete it from the originating webmail/server.

Thanking you all in advance for your help.

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u/cuddlecuffs — 4 days ago