Problem with latin extended language in subject

[vincerocz]

Please, can you add the latin extended language to subject? +ěščřžýáíé= >>> this is not OK in subject

[muquit]

Please try mailsend-go: https://github.com/muquit/mailsend-go
Thanks.

[vincerocz]

Please try mailsend-go: https://github.com/muquit/mailsend-go
Thanks.

Thank you, but no change. I tested in notepad as .bat file, UTF-8 is good for message, not for subject. Pls help :-)