sig file
noun[C]
ITukus(alsosignature file)in anemail, a fewlinesofinformationafter asignature, givinginformationabout thepersonwhosenttheemail. When someonecreatesa sigfile, it isaddedautomaticallyeachtimetheysendanemail:
Icreateda new sigfilefor my newmessages,replies, andforwards.