User Guide

66 Kaspersky
®
SMTP-Gateway 5.5 for Linux/Unix
administrator in the [locale]) section and the first letter of the
report detail level.
• envelope-id – email message identifier in the working queue
of the application, to which the email message corresponds.
• MESSAGE – message text that may have different formats
depending on the type of the message.
For the text of messages containing information about actions applied to email
messages see section A.19 on p. 116.
5.14. Additional informational
header fields in messages
Version 5.5. of the application allows addition of some supplementary information
to mail messages. Let us examine closer two methods of adding new
informational header fields to a message:
• Add extension header field to mail message.
The information may describe application version, date when the anti-
virus databases were last updated, time and result of message scanning
(determined by the AddXHeader parameter in the [smtpgw.policy]
section of the application configuration file).
Header format:
X-Anti-Virus: <product name and version>, bases: <date
of the last update to anti-virus databases in YYYYMMDD
format> #<the number of records in AV databases>,
check: <scan date in YYYYMMDD format> <scanning status
or not_checked>
E.g.:
X-Anti-Virus:Kaspersky SMTP-Gateway for Linux GLIBC
2.2 version 5.5.58/RELEASE, bases: 20041101 #102746,
check: 20041210 clean
• Add disclaimer text to mail message body.
The information will be added as plain text; it may contain any statement
generated in accordance with the security policy (or other rules) of a
specific organization (the AddDisclaimer parameter in the
[smtpgw.policy] section). The default message text notifies that the
message has been scanned by Kaspersky SMTP-Gateway. Upon
administrator’s demand the application can modify the information format
(e.g., generate disclaimer message as a HTML text).