JIRA renames attachments by appending them to their names someting like ....

[Terra Nostra]

Hello
I trying to set up a incoming mail handler. There is a problem with attachment (only files with Cyrillic in the name).

JIRA renames attachments by appending them to their names someting like "
_koi8-r_B_zMHT1NgueGxzeA==_=" or "utf-8''%D0%9A%D1%83%D1%80%D0%B3%D0%B0%D0%BD%D..."

...and then adding comment: 
Renamed attachment file:' filename 'to' filename=koi8-r_B_zMHT1NgueGxzeA=== ' because it contained invalid characters.

How to disable this?

And if we add an attachment through the JIRA's interface, there are no problems.

[Левченко Геннадий · Accepted solution]

We have dealt with the problem, thanks for participation.

[Henrique Bittencourt]

It's nice to hear that, Левченко!

I've been using UTF-8 as encoding.

Can you share with us how did you deal with this subject? This answer could help other customers that could be facing the same problem as you.

Best Regards.

[Левченко Геннадий]

it was a mail server problem. There is no problem with another mail server.

[Henrique Bittencourt]

Hi Terra!

I just tested in my local instance by sending an email creating a Jira issue with an attachment with Cyrillic characters in its name and guess what? All went fine!

1. Can you please clarify if you're using any add-on as mail handler?
2. The affected project is a Service Desk type?

Best Regards

[Левченко Геннадий]

Hello Henrique!

1) I use the built-in JIRA email catcher (mail handler), do not use the plugin.

2) No, it's usual project.

What encoding do you use in JIRA? What was the length of the file name? With a long filename, it looks like this (for short all went fine):