McAfee MAP-3300-SWG Product Guide - Page 79

Address parsing options, Address Masquerading (SMTP)

Page 79 highlights

Overview of Email features Email Configuration Table 53 Option definitions (continued) Option ESMTP extensions Definition Scans features of the Extended Simple Mail Transfer Protocol. Default values: • Enable ESMTP extensions - Yes • DSN (Delivery Sender Notification), 8BITMIME (8-bit data transfer), AUTH (Authentication) - Yes • SIZE - No Microsoft Exchange ESMTP extensions Prevents scanning of some extensions. Default values: • X-EPS, X-LINK2STATE, XEXCH50, CHUNKING - No If the appliance operates between two Microsoft Exchange servers, the appliance must allow these email headers to be exchanged without scanning. Address parsing options Use this area to configure options relating to the parsing of email addresses. You do not normally need to change these settings. Change the settings only if you understand the possible effects, or you have consulted an expert. An email address such as [email protected] has two parts: • The local part is before the @ character - user. • The domain part is after the @ character - example.com. Table 54 Option definitions Option Maximum length of the local part Maximum length of the domain part Allow non-RFC characters in the domain part Definition Specifies how many characters can be used in the local part. The RFC limit is 64 characters. Specifies how many characters can be used in the domain part. The RFC limit is 255 characters. By default, characters outside the ASCII range are not allowed in an email address. Address Masquerading (SMTP) Use the sections on this page to convert the addresses in the headers of incoming or outgoing email. Email | Email Configuration | Protocol Configuration | Address Masquerading (SMTP) For example: • Send and receive email for general enquiries using an anonymous address such as [email protected], instead of one person's specific address. • Redirect email for several people to one person. • Modify the email headers to hide information about your internal domains. McAfee Email and Web Security Appliances 5.6.0 Product Guide 79

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Table 53
Option definitions
(continued)
Option
Definition
ESMTP extensions
Scans features of the Extended Simple Mail Transfer Protocol.
Default values:
Enable ESMTP extensions
— Yes
DSN
(Delivery Sender Notification),
8BITMIME
(8-bit data transfer),
AUTH
(Authentication) — Yes
SIZE
— No
Microsoft Exchange
ESMTP extensions
Prevents scanning of some extensions.
Default values:
X-EPS
,
X-LINK2STATE
,
XEXCH50
,
CHUNKING
— No
If the appliance operates between two Microsoft Exchange servers, the appliance
must allow these email headers to be exchanged without scanning.
Address parsing options
Use this area to configure options relating to the parsing of email addresses.
You do not normally need to change these settings. Change the settings
only if you understand the possible effects, or you have consulted an
expert.
An email address such as
has two parts:
The local part is before the @ character —
user
.
The domain part is after the @ character —
example.com
.
Table 54
Option definitions
Option
Definition
Maximum length of the local part
Specifies how many characters can be used in the local part.
The RFC limit is 64 characters.
Maximum length of the domain part
Specifies how many characters can be used in the domain part.
The RFC limit is 255 characters.
Allow non-RFC characters in the domain
part
By default, characters outside the ASCII range are not allowed in
an email address.
Address Masquerading (SMTP)
Use the sections on this page to convert the addresses in the headers of incoming or outgoing email.
Email
|
Email Configuration
|
Protocol Configuration
|
Address Masquerading (SMTP)
For example:
Send and receive email for general enquiries using an anonymous address such as
[email protected], instead of one person’s specific address.
Redirect email for several people to one person.
Modify the email headers to hide information about your internal domains.
Overview of Email features
Email Configuration
McAfee Email and Web Security Appliances 5.6.0 Product Guide
79