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magdalena.len@dabrowka.edu.pl: host aspmx.l.google.com[2607:f8b0:4023:1401::1a] said: 550-5.7.1 Your e-mail has been rejected because it violates organization 550-5.7.1 internal e-mail policy. Twoja wiadomość została odrzucona 550-5.7.1 ponieważ narusza wewnętrzną politykę dostarczania poczty e-mail. 550 5.7.1 - gcdp j4-20020a25d204000000b00db3fe688219si771910ybg.160 - gsmtp (in reply to end of DATA command)