Proxy Parameters Reference
Firebox Vclass User Guide 275
you do not allow, remove them from this field. All
allowed 7-bit ASCII characters are listed by default.
The percentage sign (%) is listed twice (%%) to
represent itself. The percentage sign is used as an
escape character in the Proxy windows, to enclose
hex code and high ASCII characters, but the Proxy
windows read two percentage signs in a row as a
single percentage sign character. The “commercial
at” character (@) is not included, because this list
specifies only the characters on either side of the @,
as email addresses cannot be specified without it.
Allow Source-Routed Addresses: Allows source-
routed addresses. This is an old UUCP convention
that is not used much today, except in the
proliferation of spam email. This field is disabled
by default. It is recommended that you do not
enable this field.
HELO/EHLO Greeting Hostname
These commands are used to identify the SMTP
receiver to the SMTP server. The argument field
contains the fully-qualified domain name of the
SMTP host, if it is available. A Host is a computer
attached to the Internet that supports the SMTP
protocol.
Allowable Characters: Allows you to specify the
characters that can be used in the HELO/EHLO
greeting hostname. By default, this includes the 26
letters of the alphabet in upper and lower case, the
numbers 0—9, the period (.) and the dash (-).
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