About: mail transfer agent

Premodifier: mail transfer
Head noun: agent

Same concepts
http://dbpedia.org/resource/Message_transfer_agent

Broader concepts

label	provenance	confidence
system	isap:160651533	0.287398
example	isap:225097748	0.213754

Narrower concepts

label	provenance	confidence
sendmail	isap:358730987	0.503809
postfix	isap:33553311	0.378625
exim4	isap:366486833	0.359558
exim	isap:86566501	0.332926