Problems with metadata extractions of eml files

nettania — Tue, 10 Mar 2026 09:38:31 GMT

I have a problem with the metadat extraction of some eml files from Apple Mail. Some mailserver put a lot of additional information into the header of an e-mail and sometimes the extractor fails and the metadata of the e-mail are not extracted correctly. This is a problem because my application uses the send date of an e-mail to put all e-mails in the correct order. Currently I try to fox the following warning where I believe is the reason why the metadata are not extracted:

2026-03-10T09:28:16,358 [] WARN [content.metadata.AbstractMappingMetadataExtracter] [pool-3-thread-1] Type conversion failed during metadata extraction: Failure: Unable to convert string to date: Tue, 3 Mar 2026 14:39:36 "plus 1 hour" (CET) Type: {http://www.alfresco.org/model/dictionary/1.0}datetime Value: Tue, 3 Mar 2026 14:39:36 "plus 1 houer (CET)

plus one hour stands for CET plus one hour, the syntax is not allowed in the forum.

I already tried the following settings in the alfresco-global.properties, but they did not solve the problem:

# Fix issue that the metadata extractor does no know the date and time format of certain Apple Mail eml headers
# messageReceived wird nicht als datetime gemappt
#metadata.extracter.RFC822.mapping.messageReceived=
metadata.extracter.RFC822.failsOnTypeConversion=false

Has someone found a solution to this problem?

Thanks,

Florian

topic Problems with metadata extractions of eml files in Alfresco Forum

Problems with metadata extractions of eml files