Cyrillic filename problem

Can someone help me?

What is the exact file name that causes this issue? I don’t know well about Cyrillic, but I know there is no Cyrillic in “cyrillic_name.doc”.

Also, what versions of WordPress and Contact Form 7 do you use? Where can I see the site? What other plugins and theme do you use?

Hello, Takayuki Miyoshi! Thank you for your answer. For example filename “резюме.doc”.
Wordpress 4.1.1
Contact Form 7: 4.1
Other plugins: google analytics, gallery, seo, breadcumb.

My page with contact form:
https://dovgan.kiev.ua/jobs/glavnyj-buhgalter/

Try deactivating all other plugins and switching to the default theme.

Good day!
I have tried. Still dont work ??

Hi, install this https://www.ads-software.com/plugins/cyr3lat. I have this problem to, and cyr to lat enhanced help me.

Hello! Thank you for the answer, but still dont work >:-(
Maybe the problem with iconv set up right

Make sure your system has iconv set up right, or iconv is not installed at all.

from Cyr to Lat enhanced manual.

Iconv… May be. Cyr to Lat enhanced work normal on my hosting. I think you need help from support your hoster.

@glushenya, how are you sending your e-mail? The default way, through WordPress? Or have you installed an SMTP plugin?

RFC 2183 (Content-Disposition), states in section 2.3 (The Filename Parameter) that the file name can only use US-ASCII characters. Your file should still attach to the email, but you may have to accept that the filename will be corrupted. [screenshot]

Here is an example of Apple mail setting the character set (UTF-8) in the filename, so that the filename is not corrupted, but if this is an accepted standard for the industry in general, or just an Apple-specific extension, I can’t say:

--Apple-Mail=_B06FB6AC-C487-41A1-B8DF-76233ACB997A
Content-Disposition: attachment;
	filename*=utf-8''%D1%80%D0%B5%D0%B7%D1%8E%D0%BC%D0%B5.doc
Content-Type: application/applefile;
	name="=?utf-8?Q?=D1=80=D0=B5=D0=B7=D1=8E=D0=BC=D0=B5=2Edoc?="
Content-Transfer-Encoding: base64

AAUWAAACAAAAAAAAAAAAAAAAAAAAAAAAAAIAAAAJAAAAMgAAAAoAAAADAAAAPAAAABYAAAAAAAAA
AAAA//5ABDUENwROBDwENQQuAGQAbwBjAA==
--Apple-Mail=_B06FB6AC-C487-41A1-B8DF-76233ACB997A--

Hi all!
2 nektobit: answer from hoster: iconv is already “ON”

2 Postman SMTP: today i have installed WP-Mail-SMTP and tried sending via WordPress and via WP-Mail-SMTP. Files still comes without extension and with name “1”. ??

P.S.: i have tried your Postman SMTP Mailer. Nothing changed.

That is odd. And it works okay when attaching files with only ASCII letters in the name?

Maybe the problem is with your email viewer?

When ASCII its ok. For example:
telephone.doc comes in “telephone.doc”
телефон.doc comes in “1”.
I have tried different email (gmail, etc..)

Why do you forward the entire email to me (headers and all) and I’ll see if there’s a problem with the format. Jason at Hendriks dot ca

Check out your mail (2 mess.)
Thank you!

Hii. I’ve analyzed your email. There are two items to note. The first, your spam score is a whopping 10.3:

X-Delta-Spam-Symbols: Symbols: MIME_HTML_ONLY(1.00), ONCE_RECEIVED(1.00), BAYES_SPAM_RU(4.32)(0.86); D_UNRESOLVABLE_IP(4)
X-Delta-Spam-Score: 10,32

And Google is complaining about your domain’s lack of SPF:
Received-SPF: none (google.com: *****@dovgan.kiev.ua does not designate permitted sender hosts) client-ip=91.222.136.198;

I believe that one or both of these issues is causing one of the three SMTP servers that handled your mail to rename your attachment to “1”, for security.