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Inbound email problems: "not valid as a file name"

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Inbound email problems: "not valid as a file name"

Running community 4.0.d on Ubuntu 12.04 from binary installer; this is a test/experimental install

I have inbound email up and running, and have been able to send emails from Thunderbird to an email alias and have them appear as documents within the appropriate folder. However, some emails (mostly those being forwarded) bounce back with the error message "The subject line must be a valid file name."

Alfresco.log:

08:28:00,879 ERROR [org.alfresco.repo.node.integrity.IntegrityChecker] Found 1 integrity violations:
Invalid property value:
Node: workspace://SpacesStore/91122dff-e1b0-49b6-b251-2b2d8d694d98
Type: {http://www.alfresco.org/model/content/1.0}content
Property: {http://www.alfresco.org/model/content/1.0}name
Constraint: 07212354 Value 'Re: [Fwd: Re: FW: Bldg M014 (Unit) - MX43 (UNCLASSIFIED).eml' is not valid as a file name. This property must be a valid file name.
08:31:00,683 ERROR [org.alfresco.repo.node.integrity.IntegrityChecker] Found 1 integrity violations:
Invalid property value:
Node: workspace://SpacesStore/43b057e3-1afb-4f99-b442-87490abd7162
Type: {http://www.alfresco.org/model/content/1.0}content
Property: {http://www.alfresco.org/model/content/1.0}name
Constraint: 07212468 Value 'Re: X-003-004 Dickinson County.eml' is not valid as a file name. This property must be a valid file name.

The actual email itself does NOT have ".eml" as part of the subject line.

The problem happens only when I am forwarding an email that originated in an outside email system (Outlook/Exchange?) and was sent to my Thunderbird mailbox. However, it's not consistent, in that some outside emails can be forwarded successfully: they show up in the document library as two pieces, with the forwarding "wrapper" showing as an email with an attachment (the original message) as a document with the extension .eml. The problematic ones are mostly those with "re:" in the original subject line.

Have I stumbled on a bug or merely have something misconfigured? Is there a simple way to rename the attachment to remove any punctuation?

[Possibly related: emails that are successfully forwarded into the document library sometimes show up with an encoding glitch in the title: "[Re: test]" becomes "[Re%3a test]" ]

Thank you in advance for any assistance or suggestions.

--christine desmuke
Kansas Historical Society