IMAP server (Comcast) leave copy of mail on server

[Chris Homan]

I just noticed that K9 is not leaving a copy of the email on the server and I cannot find where there is a setting to tell it to do that. I've checked all the settings.  I just noticed it because I see an email on my phone (K9 mail) that does not show up on my desktop (Outlook), so k9 must have deleted the email from the server before Outlook could download it also to my desktop. Where is the setting in K9 to leave a copy on the server after fetching mail?  I thought I had this set up already and now discover I may have missed some emails for some time.  Thanks for your help

[Greg Troxel]

You said IMAP, but you sound like you are talking about POP3.

If you are using POP3, the solution is to stop doing that :-)

If you really mean IMAP, note that I have seen some clients fail to
display some messages even though they are actually on the server. But
this is rare.

There is no "leave on server" with IMAP because that is the standard
approach. Messages remain until deleted or moved.

[Chris Homan]

Comcast/Xfinity is setup as IMAP, I guess I need to find a different email client for my phone.  I never noticed that I was getting emails on my phone that were being deleted from the server until recently. In the past I thought I was also getting them later when I went to Outlook on my desktop. It seemed I was getting them on both devices.

My bad for not noticing this a long time ago.

Thanks

[Gunter Königsmann]

I also had a mail provider that deleted mails only for the client that deleted them- which was not of a problem as I had two computers and a cellphone back then and if I failed to delete the mail on one of them it still used part of the small mailbox size they gave me. One day my mail provider repaired this bug.
Which means: If the problem is the server it might not disappear if you switch the mail client.

---

Another idea: Do you use the Thunderbird on you desktop PC? I once had strange results in k8 and they disappeared after I told my Thunderbird to rebuild its inbox'es database (https://support.mozilla.org/en-US/kb/rebuilding-global-database).

Kind regards,

Gunter.

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Diese Nachricht wurde von meinem Android-Gerät mit K-9 Mail gesendet.

[Martin Neumann]

Hi Chris,

I've to agree with Greg, what you describe sounds very much like you are using the POP3 protocol on your phone with k9 to fetch your email from your server.

POP3 by default will download the email to your client and when retrieved the copy on the server will be removed.

Please check your settings in K9 for the account in question.

In the account settings look for fetching mail and then incoming server.

The first row should read IMAP server in its title.

When you can confirm IMAP is set up in K9 then further investigation would be required.

I've been using IMAP for many years with various clients on my phones, and various computers

and have not had issues as you described.

Best

Martin