CODEWITHSUNDEEP
c#emailimaprebex
Deep Jadia
Deep Jadia

Reputation: 111

IMAP rebex Client connection timeout

I have the list of unique keys of unseen emails and my current logic is to process it in one session/connection. However, sometimes server[rebex] crashes and sends an error *

Rebex.Net.ImapException: The server has closed the connection.

at below point.

Here, it will mark particular email's status seen though it generates an error. So, next time if I try to get information of unseen emails this particular unique key email will be missed.

Here, I have explored some possible ways

  1. To mark that error email unseen.
  2. Again create connection for that particular email and fetch information from that.
  3. Make IMAP client singleton and whenever it crashes, create a new one.

Are there any more optimized solutions? Thanks

Upvotes: 1

Views: 735

Answers (2)

Lukas Pokorny
Lukas Pokorny

Reputation: 1558

You can prevent GetMailMessage from marking email as seen using Imap object's Settings.UsePeekForGetMessage option:

var imap = new Imap();
imap.Settings.UsePeekForGetMessage = true;
...

Once you actually decide to mark the email as seen, use SetMessageFlags method:

imap.SetMessageFlags(unique_key, ImapFlagAction.Add, ImapMessageFlags.Seen);

Upvotes: 4

arnt
arnt

Reputation: 9685

The classic response is to mark messages as processed after processing instead of before.

Which may lead to problems if a processing a particular message leads to a crash. One doesn't want to reconnect and immediately run into the same problem. So perhaps keep a record of when you last tried, and try messages oldest-first.

Upvotes: 1

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