In that log file the dash in the address in one of the early rows is a long dash, not sure if it is an em dash or an en dash. Neither can be used in an email address or domain name.
To see what they look like, i typed a number of dashes here using the google keyboard. The first is a normal hyphen (short press), the others were typed using a long press of the hyphen, which offers a choice of different dashes, plus underscore and decimal point. I have chosen them in the order they appear.
Test-test—test_test–test·test
So, hyphen, em dash, underscore, en dash, (English) decimal point, from left to right.
Dave Beakhust.