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Topic: Delete message IMAP

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loredano
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Newbie

Joined: 11 April 2018
Location: Italy
Online Status: Offline
Posts: 15

Posted: 04 October 2019 at 1:05am \| IP Logged

Hi,
are there some difference between use the method

public bool DeleteMessages(
     string messageIndexSet,
     bool indexIsUid
)

and/or

public bool SetMessageFlags(
     string messageIndexSet,
     bool indexIsUid,
     SystemMessageFlags systemFlags,
     MessageFlagAction action
)

before to call "Imap.Expunge Method" to permanently delete messages on imap server?

This question because we note sometimes, with a large number of messages to delete, the messages are not deletes with not exceptions.
In our code we use:
imp.DeleteMessages(toDelete, true);
imp.Expunge(toDelete, false)
to delete the "toDelete" messages.

Regards,
Loredano

Alex
AfterLogic Support

Joined: 19 November 2003
Online Status: Offline
Posts: 2207

Posted: 04 October 2019 at 1:36am \| IP Logged

Hi,

You may try using imp.Expunge() without parameters if you want to delete all messages with \Deleted flag, not only certain ones.

Anyway, the first troubleshooting measure is enabling log file (imp.Log). The log way show may actually happens there. Maybe, some issue with the mail server. Deleting lots of messages at once can be too heavy operation for that server and you may need to refactor the code to delete and expunge messages in smaller portions.

Regards,
Alex

ashrafaliimran
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Newbie

Joined: 28 February 2025
Location: Pakistan
Online Status: Offline
Posts: 1

Posted: 28 February 2025 at 4:29am \| IP Logged

The main difference is that DeleteMessages marks messages for deletion, while SetMessageFlags allows more granular control over message flags (like setting deleted flags). Calling Expunge removes messages permanently. If some messages aren't deleted, ensure proper flag handling before calling Expunge to guarantee deletion.

https://alightmotionapks.net/

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