FreeBSD-13.2p9 squirrelmail-php83 20230207 Following authentication the following error is displayed in the message pane: ERROR: Bad or malformed request. Query: FETCH 1,3:5,7,10,12,18:19,28,50,119,121:123,125,127:128,132:135,138 (FLAGS UID RFC822.SIZE INTERNALDATE BODY.PEEK[HEADER.FIELDS (Date To Cc From Subject X-Priority Importance Priority Content-Type )]) Server responded: Invalid field-name in UID Fetch BODY.PEEK[HEADER.FIELDS When opening a folder the following is returned: ERROR: Bad or malformed request. Query: FETCH 48151,50099,61689,68730,71439,71602,71682,71906,72251,72297,72342,72372,72430:72431,72468:72469,72492,72500,72522,72530,72605,72616 (FLAGS UID RFC822.SIZE INTERNALDATE BODY.PEEK[HEADER.FIELDS (Date To Cc From Subject X-Priority Importance Priority Content-Type )]) Server responded: Invalid field-name in UID Fetch BODY.PEEK[HEADER.FIELDS Expected response is a list of messages in the folder.
Maybe try latest stable snapshot(20240125). It includes some fixes: e.g: https://sourceforge.net/p/squirrelmail/code/14991/ Not sure if this will resolve your issue. I don't use squirrelmail.
Created attachment 247956 [details] Squirrelmail stable 20240125 Update to stable snapshot 20240125.
Updating to stable 20240125 fixed the issue.