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Editorial Team
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Asked: 2026-06-05T16:28:35+00:00

I am using the JavaMail API to fetch mails. Earlier today I succeeded in

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I am using the JavaMail API to fetch mails. Earlier today I succeeded in doing so with Gmail. Now I tried Yahoo Mail and it worked too.

One problem though:

It doesn’t show if the mail has been read or not correctly. I have a mailbox full of mails that have been read, though the application says I haven’t.

I use this to determine if a mail that is fetched, have been read or not:

 String isRead = (message[i].getFlags().contains(Flags.Flag.SEEN) ? "Yes" : "No");

It works with Gmail. Just not with Yahoo Mail.
Anyone got any idea why this might be?

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1 Answer

  1. Editorial Team

    What protocols are you using? I know Gmail supports IMAP so I assume that is what you are using there. Does Yahoo? If they only support POP3 then the flags won’t work because POP3 doesn’t support flags.

    Try seeing what Folder.getPermanentFlags() returns.

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