dot-qmail(5)</A></STRONG>, <STRONG><A HREF="../cat5/envelopes.0.html">envelopes(5)</A></STRONG>, <STRONG><A HREF="../cat8/qmail-alias.0.html">qmail-alias(8)</A></STRONG>dot-qmail(5)</STRONG>. <STRONG>RECIPIENT</STRONG> is the envelope recipient address, <EM>local@domain</EM>. <STRONG>USER</STRONG> is <EM>user</EM>. <STRONG>HOME</STRONG> is your home directory, <EM>homedir</EM>. <STRONG>HOST</STRONG> is the <EM>domain</EM> part of the recipient address. <STRONG>LOCAL</STRONG> is the <EM>local</EM> part. <STRONG>EXT</STRONG> is the <STRONG>.qmail</STRONG> extension, <EM>ext</EM>. <STRONG>EXT2</STRONG> is the portion of <STRONG>EXT</STRONG> following the first dash; <STRONG>EXT3</STRONG> is the portion following the second dash; <STRONG>EXT4</STRONG> is the portion following the third dash. <STRONG>DTLINE</STRONG> and <STRONG>RPLINE</STRONG> are the usual <STRONG>Delivered-To</STRONG> and <STRONG>Return-Path</STRONG> lines, including newlines. <STRONG>UFLINE</STRONG> is the UUCP-style <STRONG>From_</STRONG> line that <STRONG>qmail-alias</STRONG> adds to <EM>mbox</EM>-format files. <STRONG>WARNING:</STRONG> These environment variables are not quoted. They may contain special characters. They are under the con- trol of a possibly malicious remote user.