The original message was received at Wed, 21 Dec 2022 14:17:24 GMT from m0307600.ppops.net [127.0.0.1] ----- The following addresses had permanent fatal errors ----- <marcela.miozzo@manchester.ac.uk> (reason: 550 5.1.1 No such recipient <marcela.miozzo@manchester.ac.uk>) ----- Transcript of session follows ----- ... while talking to mx3.its.manchester.ac.uk.:

...

...

RCPT To:<marcela.miozzo@manchester.ac.uk> <<< 550 5.1.1 No such recipient <marcela.miozzo@manchester.ac.uk> 550 5.1.1 <marcela.miozzo@manchester.ac.uk>... User unknown