mail.spec.lt has one IP number , but the reverse is mail.mtlinija.lt. laa.lt, ldf.lt, mex.lt, egl.lt, srb.lt and at least 55 other hosts point to the same IP. spec.lt use this as a mailserver. spec.lt is a domain controlled by two nameservers on different IP networks. Incoming mail for spec.lt is handled by one mailserver at spec.lt themselves. spec.lt has one IP number. mail.spec.lt is hosted on a server in Lithuania.