Update domains.csv (#519)

Co-authored-by: Luke Smith <luke@lukesmith.xyz>

share/domains.csv

@@ -126,6 +126,7 @@ interia.*,poczta.interia.pl,993,poczta.interia.pl,465
 inventati.org,mail.autistici.org,993,smtp.autistici.org,465
 ionos.de,imap.ionos.de,993,smtp.ionos.de,587
 itu.dk,imap-mail.outlook.com,993,smtp-mail.outlook.com,587
+iu.edu,imap.exchange.iu.edu,993,mail-relay.iu.edu,587
 kean.edu,imap.gmail.com,993,smtp.gmail.com,587
 kipras.org,mail.kipras.org,993,mail.kipras.org,587
 krutt.org,mail.autistici.org,993,smtp.autistici.org,465
@@ -264,4 +265,4 @@ yandex.*,imap.yandex.com,993,smtp.yandex.com,587
 ymail.com,imap.mail.yahoo.com,993,smtp.mail.yahoo.com,465
 zaclys.net,mail.zaclys.net,993,mail.zaclys.net,465
 zoho.com,imap.zoho.com,993,smtp.zoho.com,465
-zohomail.eu,imap.zoho.eu,993,smtp.zoho.eu,465
+zohomail.eu,imap.zoho.eu,993,smtp.zoho.eu,465