davmail - ErrorInvalidIdMalformed Id is malformed.

[dmarinuswoodwing]

Version: a6affee

2026-04-23 08:48:10,094 DEBUG [ImapConnection-38330] davmail  - < NBKJ3 SELECT Archiveren
2026-04-23 08:48:10,095 DEBUG [ImapConnection-38330] davmail.exchange.graph.GraphRequestBuilder  - GET https://graph.microsoft.com/beta/me/mailFolders/msgfolderroot?%24expand=singleValueExtendedProperties%28%24filter%3Did+eq+%27SystemTime+0x3008%27+or+id+eq+%27SystemTime+0x670a%27+or+id+eq+%27String+0x3613%27+or+id+eq+%27Integer+0x6751%27%29
2026-04-23 08:48:10,135 DEBUG [ImapConnection-38330] davmail.exchange.graph.GraphRequestBuilder  - GET https://graph.microsoft.com/beta/me/mailFolders/AAMkADU1N2FiYzRmLWVjYzItNDUxYS05YjM4LTA1NDY5NzZkN2VhYQAuAAAAAACC7oeqPYeTTqqLfu_QY67yAQA2V-jgTAFSSqnYgYWQMDRBAAAAAAEIAAA=?%24expand=singleValueExtendedProperties%28%24filter%3Did+eq+%27SystemTime+0x3008%27+or+id+eq+%27SystemTime+0x670a%27+or+id+eq+%27String+0x3613%27+or+id+eq+%27Integer+0x6751%27%29
2026-04-23 08:48:10,196 DEBUG [ImapConnection-38330] davmail.exchange.graph.GraphRequestBuilder  - GET https://graph.microsoft.com/beta/me/mailFolders/msgfolderroot?%24expand=singleValueExtendedProperties%28%24filter%3Did+eq+%27SystemTime+0x3008%27+or+id+eq+%27SystemTime+0x670a%27+or+id+eq+%27String+0x3613%27+or+id+eq+%27Integer+0x6751%27%29
2026-04-23 08:48:10,276 DEBUG [ImapConnection-38330] davmail.exchange.graph.GraphRequestBuilder  - GET https://graph.microsoft.com/beta/me/mailFolders/msgfolderroot?%24expand=singleValueExtendedProperties%28%24filter%3Did+eq+%27SystemTime+0x3008%27+or+id+eq+%27SystemTime+0x670a%27+or+id+eq+%27String+0x3613%27+or+id+eq+%27Integer+0x6751%27%29
2026-04-23 08:48:10,442 DEBUG [ImapConnection-38330] davmail.exchange.graph.GraphRequestBuilder  - GET https://graph.microsoft.com/beta/me/mailFolders//childFolders?%24expand=singleValueExtendedProperties%28%24filter%3Did+eq+%27SystemTime+0x3008%27+or+id+eq+%27SystemTime+0x670a%27+or+id+eq+%27String+0x3613%27+or+id+eq+%27Integer+0x6751%27%29&%24filter=displayName+eq+%27Archiveren%27
2026-04-23 08:48:10,481 WARN  [ImapConnection-38330] davmail.exchange.ExchangeSession  - HTTP/1.1 400 Bad Request
2026-04-23 08:48:10,483 ERROR [ImapConnection-38330] davmail  - ErrorInvalidIdMalformed Id is malformed.
java.io.IOException: ErrorInvalidIdMalformed Id is malformed.
        at davmail.exchange.graph.JsonResponseHandler.handleResponse(Unknown Source)
        at davmail.exchange.graph.GraphExchangeSession.executeJsonRequest(Unknown Source)
        at davmail.exchange.graph.GraphExchangeSession.getSubFolderByName(Unknown Source)
        at davmail.exchange.graph.GraphExchangeSession.getSubFolderIdIfExists(Unknown Source)
        at davmail.exchange.graph.GraphExchangeSession.getFolderIdIfExists(Unknown Source)
        at davmail.exchange.graph.GraphExchangeSession.getFolderId(Unknown Source)
        at davmail.exchange.graph.GraphExchangeSession.internalGetFolder(Unknown Source)
        at davmail.exchange.graph.GraphExchangeSession.internalGetFolder(Unknown Source)
        at davmail.exchange.ExchangeSession.getFolder(Unknown Source)
        at davmail.imap.ImapConnection.run(Unknown Source)

[mguessan]

It looks like for some reason your archive folder "Archiveren" has an empty id => trying to get subfolders fails.

Just added more logs to try to better understand what's going on.