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Moderators - Can you please not delete this post as off topic mobile as this problem also occurs in my Mac Mail email client. It's just easier to demonstrate here.

I'm using an iPhone 4 against an Exim 4.2.52 using IMAP. I'm unable to delete messages in this particular account - see the error message below. After getting this dialog the messages disappears from the current view until I switch out and back to it when it reappears.

enter image description here

The other behavior I see is that despite me picking an IMAP folder for Drafts, Sent and Deleted messages, after I save those settings and go back to that screen the settings have reverted to the local iPhone folders.

enter image description here

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This question doesn't make any sense. Exim does not provide IMAP service, and there's no such Exim version as 4.2.52... –  jj33 Jul 7 '11 at 3:10
Regardless of what you're using as a client you are not using exim as an IMAP server. –  Ram Aug 15 '12 at 18:09
I should have been more specific - the IMAP server is Cyrus which is frequently married with Exim. wiki.exim.org/CyrusImap –  Matt Aug 17 '12 at 3:10

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