strange characters in log

Fourhundred Thecat Sun, 23 May 2021 18:01:02 -0700

Hello,

I see following lines in my log (pasted below). What do these errors
mean? Is somebody sending garbage characters to my server?




postfix/trivial-rewrite[5179]:  warning: midna_domain_to_ascii_create:
Problem translating domain "Ø§Ø®ØªØ¨Ø§Ø±-Ø§Ù

                                                                ÙØ¨ÙÙ

                                                                     -Ø§Ù


 Ø¹Ø§Ù


      Ù
Ù.Ø´Ø¨ÙØ©" to ASCII form: UIDNA_ERROR_DISALLOWED
postfix:25/smtpd[5177]:  warning: Illegal address syntax from
testo.tel[52.39.45.118] in MAIL command: <john@Ø§Ø®ØªØ¨Ø§Ø±-Ø§Ù


  ÙØ¨ÙÙ


       -Ø§Ù


           Ø¹Ø§Ù


                Ù
Ù.Ø´Ø¨ÙØ©>
postfix:25/smtpd[5177]:  disconnect from testo.tel[52.39.45.118] ehlo=1
mail=0/1 quit=1 commands=2/3

strange characters in log

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