There are incomprehensible letters from the site, how to fix it?

Question

CMS

There is a site on the Joomla engine, there is AcyMailing that sent the newsletter, but now other organizations are complaining that Chinese characters are being sent to them from the site, tell me how to fix this?

Answer 1

In general, the situation is such xs as, but the mail of one of the superusers of the site was hacked from the mail of which spam is coming, it turned out that it turned out that he asked to forward the letter in the address this person was indicated

Answer 2

Смотреть кодировку, обновить плагин, etc