IMAP Sync Issue and POP3 Timestamp Problem with Daum Mail

Mail
1

Hello,

I have been a satisfied user of emClient since subscribing on January 29, 2026. While I truly appreciate the powerful features of your product, I am currently facing two critical issues while using “Daum Mail” (one of the major email services in South Korea). I would appreciate your technical assistance.

Account Environment:

  • Email Provider: Daum (daum.net)
  • Client: emClient (Latest version)

Issue 1: IMAP Synchronization Failure (Connection Persistence Issue)

  • Settings:
    • IMAP Server: imap.daum.net (Port 993, SSL)
    • SMTP Server: smtp.daum.net (Port 465, SSL)
  • Symptoms:
    • When I first launch emClient, it successfully syncs and fetches new emails.
    • However, if I leave the application running, it fails to fetch any new emails automatically, regardless of the sync interval settings.
    • Restarting the application temporarily fixes the issue for one-time synchronization only.
    • Current Workaround: I am currently forced to use a third-party tool (cport) and a macro to periodically kill the “MailClient” port. This forced reconnection is the only way to receive new mail. I have tried adjusting various internal settings, but nothing has resolved this.

Issue 2: POP3 Timestamp Inaccuracy

  • Settings:
    • POP3 Server: pop.daum.net (Port 995, SSL)
  • Symptoms:
    • As an alternative to the IMAP issue, I tried using POP3.
    • However, when importing emails, emClient displays the “Received Date/Time” as the moment of download, rather than the original sent date from the server.
    • For example, if I have 100 emails sent between January and April 2026, and I set up the account today, all 100 emails are grouped under “Today’s Date.”

I would love to continue using emClient as my primary mail client. Is there any way to fix the IMAP idle/sync issue, or a way to ensure POP3 preserves the original timestamps?

I look forward to your guidance.

Best regards,

2

Hi, would you be able to create a test account for us so that we can check the behavior? If not, we’d appreciate it if you could help us with gathering some logs:

  1. Go to Menu > Settings > Advanced.

  2. Enable logging for IMAP under the affected account.

  3. Restart eM Client.

  4. When you get a message in webmail and can’t see it in eM Client, write down the time.

  5. Click Refresh. If the message still doesn’t appear, restart eM Client again.

  6. When you can see the message in eM Client, right-click it, open Properties, and copy the UID.

  7. Go to Menu > Help > Open Log Directory

  8. Contact me at [email protected] with: IMAP logs from the directory, message time from webmail, message UID

3

I sent an email. Thanks

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