Update domains.csv (#380)

Added the line:
niser.ac.in,imap.gmail.com,993,smtp.gmail.com,587

share/domains.csv

@@ -190,6 +190,7 @@ national.shitposting.agency,mail.cock.li,993,mail.cock.li,587
 ncsu.edu,imap.gmail.com,993,smtp.gmail.com,587
 netcourrier.com,mail.netcourrier.com,993,mail.netcourrier.com,465
 nigge.rs,mail.cock.li,993,mail.cock.li,587
+niser.ac.in,imap.gmail.com,993,smtp.gmail.com,587
 nuke.africa,mail.cock.li,993,mail.cock.li,587
 nyu.edu,imap.gmail.com,993,smtp.gmail.com,587
 o2.pl,poczta.o2.pl,993,poczta.o2.pl,465