reporting bug of SquirrelMail 1.4.23-svn

Hi,

I am writing to report an issue with SquirrelMail 1.4.23-svn.

We have a Linux server with the following environment :

1. Apache/2.4.39 with OpenSSL/1.1.1l
2. PHP 7.3.4
3. squirrelmail-20190221_0201-SVN.locales.tar.bz2
4. Six SquirrelMail plugins
    compatibility-2.0.16-1.0
    html_mail-2.3-1.4
    tnef_decoder-1.0-1.4.0
    undelete-2.0-1.4.0
    view_as_html-3.8
    vlogin-3.10.2-1.2.7
5. access two IMAP servers
    one runs "Panda IMAP 2010.417" (built from Alpine-2.26 package)
    one runs "Microsoft Exchange IMAP4"

This copy of SquirrelMail works perfectly.


Recently, we upgraded SquirrelMail to
"squirrelmail-20230725_0200-SVN.stable.tar.bz2".
Exactly the same configurations are applied to the new tree.
The "<path to squirrelmail>/src/configtest.php" reports no error.
Users login are successful but the right frame shows the following error :

# Connect to Panda IMAP
> ERROR: Bad or malformed request.
> Query: FETCH 1,32 (FLAGS UID RFC822.SIZE INTERNALDATE BODY.PEEK[HEADER.FIELDS
> (Date To Cc From Subject X-Priority Importance Priority Content-Type )])
> Server responded: Syntax error in header fields

# Connect to Microsoft Exchange
> ERROR: Bad or malformed request.
> Query: FETCH
> 23448:23449,23537,24173,24213,24402,24433,24452,24468,24505,24637,24673:24676
> (FLAGS UID RFC822.SIZE INTERNALDATE BODY.PEEK[HEADER.FIELDS (Date To Cc From
> Subject X-Priority Importance Priority Content-Type )])
> Server responded: Command Argument Error. 11


We then replicate the SquirrelMail installation on another server :

1. Apache/2.4.56 OpenSSL/3.1.0
2. PHP 8.1.17
3. squirrelmail-20230725_0200-SVN.stable.tar.bz2
4. no SquirrelMail plugins

This copy of SquirrelMail has the same problem as described above.


Please kindly advise.


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