Package: at Version: 3.1.20-3.1 Severity: minor File: /usr/share/man/man1/at.1.gz
The man page lists [email protected]. This gives <[email protected]>: host scc-mailin-cn-01.scc.kit.edu[141.52.226.150] said: 550 Unrouteable address (in reply to RCPT TO command)
