14 DNS MX record assets at mailfilter-in-01.viettel.com.vn.
viettelpost.com.vn
lumitel.co.bi
imuzik.com.vn
halotel.co.tz
vtatelecom.com
vdtc.com.vn
emoney.com.kh
metfone.com.kh
vcm.com.mm
epass-vdtc.com.vn
natcom.com.ht
bitel.com.pe
movitel.co.mz
mmola.co.mz