qmail(8)</STRONG> for more details.) <STRONG>qmail-alias</STRONG> automatically detects forwarding loops the instant they occur, even if they happen indirectly through other hosts. As a helpful special case, if a <STRONG>.qmail</STRONG> file is empty, it refers to <STRONG>~</STRONG><EM>you</EM><STRONG>/Mailbox</STRONG>. For example, if you touch <STRONG>~</STRONG><EM>you</EM><STRONG>/.qmail-direct</STRONG>, mail for <EM>you</EM><STRONG>-direct</STRONG> will act like <STRONG>\</STRONG><EM>you</EM> did under <STRONG>sendmail</STRONG>. Addresses that don't contain a username are handled by the <STRONG>alias</STRONG> user. For example, your system administrator has set up <STRONG>~alias/.qmail-postmaster</STRONG> to handle mail for <STRONG>Post-</STRONG> <STRONG>master</STRONG>. (Note to administrators: <STRONG>~alias</STRONG> doesn't apply to addresses that start with a user name, with certain excep- tions.) addresses(5)</A></STRONG>, <STRONG><A HREF="../cat5/dot-qmail.0.html">dot-qmail(5)</A></STRONG>, <STRONG><A HREF="../cat5/envelopes.0.html">envelopes(5)</A></STRONG>, <STRONG><A HREF="../cat8/qmail-header.0.html">qmail-header(8)</A></STRONG>, <STRONG><A HREF="../cat8/qmail-inject.0.html">qmail-inject(8)</A></STRONG>