Subject encoding

[Naghal]

Describe the bug
When saving subject to database, sometimes the subject output is different for messages with the same subject. (Ex. Two reply to the same message)
Reply A subject: 'Re: Accès SQL Anthony'
Reply B subject: 'Re: Acce`s SQL Anthony'
To Reproduce
Steps to reproduce the behavior:

1. Call getMessage() on message A
2. Call getMessage() on message B
3. The message A subject is Re: Accès SQL Anthony while message b subject is Re: =?utf-8?Q?Acc=C3=A8s_?=SQL Anthony

Expected behavior
Message should be the same for the two messages since the email source has the same subject and encoding information.

Additionnal information
To convert Re: =?utf-8?Q?Acc=C3=A8s_?=SQL Anthony to proper UTF8, I use the following function which when saved to database is correctly set to 'Re: Accès SQL Anthony'

private function convertSubjectEncoding($subject)
    {
        $encoding = mb_detect_encoding($subject);
        if($encoding != 'UTF-8') {
            return iconv_mime_decode($subject, 0, "UTF-8");
        }
        return $subject;
    }

The message which is saved as Re: Acces SQL Anthony in the database is already UTF-8 when I call getSubject()I have tried UTF-8, ASCII and nothing asdecoder.message.subject` setting.

Screenshots
If applicable, add screenshots to help explain your problem.

Desktop / Server (please complete the following information):

• OS: [Linux]
• PHP: [7.4]

Additional context
Here is the email source of email a and B (Subject part only)
A: Subject: Re: =?utf-8?Q?Acc=C3=A8s_?=SQL Anthony
B: Subject: =?UTF-8?Q?Re=3A_Acc=C3=A8s_SQL_Anthony?=

[OysteinHoiby]

Hi,

I had the same issue, and found a workaround. I'm not sure if this is the best approach to this issue, anyway this worked for me:

In Message.php on line 401 change
$this->subject = imap_utf8($header->subject);
to
$this->subject = iconv_mime_decode($header->subject);

[Naghal]

Hi, I ended up doing something similar. However, I am also forced to replace accented caracters with normal ones.
I.E: é become e
normalizeChars(iconv_mime_decode($subject, 2, "UTF-8"));

The workaround you mentionned can not be used in my case as I need to compare the subjects of multiple messages to group them by conversation. (Looking at references also)
If I did only use iconv_mime_decode, message A would have an accent and not the B, so the comparison would fail.

[Vishrut-1]

mb_decode_mimeheader($oMessage->getSubject());
Try this it will work.

[Webklex]

Please update to the latest version and take a look at the available config option imap.options.decoder.message.subject.
If you want to use mb_decode_mimeheader() set it to mimeheader or to iconv if you want to use iconv_mime_decode().

Best regards,

[sachinaquilmedia]

When I compare the encode subject with some other language then its show null data

This is the query
$messages = $query->from($value->email_address)->subject($value->subject)->setFetchOrderDesc()->get();

[freescout-helpdesk]

Webklex/php-imap#410

[Hardik0078]

Subject issue- fetching email from the mail server with this package subject coming in this format =?UTF-8?B?4KSo4KS/4KS14KS/4KSm4KS+IOCkuOCkguCkluCljeCkr+CkviBHRU0vMjAyMy9CLzM0OA==?= =?UTF-8?B?MTcwOCDgpK7gpYfgpIIg4KSr4KS+4KSH4KSo4KWH4KSC4KS44KS/4KSv4KSyIOCksOClh+CknyDgpJU=?=

how can i fix this?
i used iconv_mime_decode function but it not works

[freescout-helpdesk]

Working solution is described here: Webklex/php-imap#410

Here is the result:

[Hardik0078]

it works, Thank you so much @freescout-helpdesk .