mx: voicemailtoemail.vtc.net.
mx: vtc.net.mx1.greymail.rcimx.net.
mx: vtc.net.mx2.greymail.rcimx.net.
mx: vtc.net.mx3.greymail.rcimx.net.
mx: vtc.net.mx4.greymail.rcimx.net.
ns: azlan.vtc.net.
ns: nmlan.vtc.net.
mx: vtc.net.mx1.greymail.rcimx.net.
mx: vtc.net.mx2.greymail.rcimx.net.
mx: vtc.net.mx3.greymail.rcimx.net.
mx: vtc.net.mx4.greymail.rcimx.net.
ns: azlan.vtc.net.
ns: nmlan.vtc.net.
mx: connection
ns: azlan.vtc.net.
ns: nmlan.vtc.net.
mx: vtc.net.mx1.greymail.rcimx.net.
mx: vtc.net.mx2.greymail.rcimx.net.
mx: vtc.net.mx3.greymail.rcimx.net.
mx: vtc.net.mx4.greymail.rcimx.net.
ns: azlan.vtc.net.
ns: nmlan.vtc.net.