The Outgoing server (SMTP) %S does not seem to support encrypted passwords. If you just set up the account, try changing the 'Authentication method' in 'Account Settings | Outgoing server (SMTP)' to 'Password, transmitted insecurely'. If it used to work but now doesn't, you may be susceptible to getting your password stolen.
Chiquvchi server (SMTP) %S shifrlangan parollarni qo‘llab-quvvatlamaydiganga o‘xshaydi. Hozirgina hisobni sozlagan bo‘lsangiz, "Hisob sozlamalari | Chiquvchi server (SMTP)"dan "Haqiqiylikni tasdiqlash uslubi"ni "Parol, xavfli usulda o‘tkazilgan"ga o‘zgartiring. Agar undan ilgari foydalangan bo‘lsangiz-u, lekin hozir ishlamayotgan bo‘lsa, parolingizni birov o‘g‘irlaganligi gumon qilinadi.