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Cyrillic attachment filenames are corrupt when sending emails



Filenames and file extensions of email attachments are corrupt when the length of these filenames are greater than 15 Cyrillic characters. This occurs when emails are sent. The filenames in the recipient email are also corrupt. The content of these files are not corrupted.

Error Messages

Not Applicable

Steps to Reproduce

  1. Open any case;
  2. Attach any file with Cyrillic characters in the filename to this case;
  3. Run the case.
  4. Send an email notification with files attached to the case.


Perform the following local-change:

  1. Run the nodes with the following JVM parameter:

  2. Restart each node to fetch this new JVM parameter. JavaMail passes the attachment filenames, as encoded, to the email recipient.


Published October 18, 2018 - Updated October 8, 2020

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