freeGuard 100 CLI User Manual
41
4.8
service smtp
Use this command to configure how the freeGuard 100 handles antivirus scanning of large files in
SMTP traffic, what ports the freeGuard 100 scans for SMTP, and how the freeGuard 100 handles
interaction with an SMTP server for delivery of email with infected email file attachments.
Command syntax pattern
config antivirus service smtp
set <keyword> <variable>
end
config antivirus service smtp
unset <keyword>
end
get antivirus service [smtp]
show antivirus service [smtp]
antivirus service smtp command keywords and variables
Keywords & Variables Description
Default
memfilesizelimit
<MB_integer>
Set the maximum file size that can be buffered to memory
for virus scanning. The maximum file size allowed is 10%
of the freeGuard 100 RAM size. For example, a
freeGuard 100with 256 MB of RAM could have a
threshold range of 1 MB to 25 MB. Note: For email
scanning, the memfilesizelimit refers to the final size of
the email after encoding by the email client, including
attachments. Email clients may use a variety of encoding
types and someencodings translate into larger file sizes
than the original attachment. The most common
encoding, base64, translates 3 bytes of binary data into 4
bytes of base64 data. So a file may be blocked or logged
as oversized even if the attachment is several megabytes
less than the memfilesizelimit.
10 (MB)
port <port_integer>
Configure antivirus scanning on a nonstandard port
number or multiple port numbers for SMTP. You can use
ports from the range 1-65535. You can add up to 20
ports.
143
uncompsizelimit
<MB_integer>
Set the maximum uncompressed file size that can be
buffered to memory for virus scanning. Enter a value in
megabytes between 1 and the total memory size. Enter 0
for no limit (not recommended).
10 (MB)
How file size limits work
See “How file size limits work”.
Summary of Contents for freeGuard 100
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