add hhu university domain

domains.csv

@@ -88,6 +88,7 @@ grrlz.net,mail.autistici.org,993,smtp.autistici.org,465
 hacari.com,mail.autistici.org,993,smtp.autistici.org,465
 hacari.net,mail.autistici.org,993,smtp.autistici.org,465
 hacari.org,mail.autistici.org,993,smtp.autistici.org,465
+hhu.de,mail.hhu.de,993,mail.hhu.de,587
 hitler.rocks,mail.cock.li,993,mail.cock.li,587
 horsefucker.org,mail.cock.li,993,mail.cock.li,587
 hostgator,gator4171.hostgator.com,993,gator4171.hostgator.com,587