URL

URL checks

Checks

Suspicious URLs

Suspicious URLs often indicate an email is spam. This may include very long numerical URLs, URLs containing an email address or URLs containing the word remove

Example interface:

Options:
(More Info)Off, Weight, Mark, Block, Delete

Default:Weight

Mismatched URLs

Mismatched or masked URLs often indicate an email is spam or a Phishing attack.

Example interface:

Options:
(More Info)Off, Weight, Mark, Block, Delete

Default:Mark

Internet Updated URLs

The action to take if an Internet updated disallowed url expression is found.

Example interface:

Options:
(More Info)Off, Weight, Mark, Block, Delete

Default:Block

Expressions

URL Expressions

This list allows the configuration of url matching expressions. When an expression matches it will perform the action specified for the expression. The expression type shows the type of expression the matching engine will use for the entered expression. Expressions have a built in precedence: Allow > Delete > Block > Mark > Weight Remember that your SPAM Blocker/Action settings may globally preclude one or more of these actions.

Expression types:

sub

Case insensitive substring

Specify as

simply "match" or "sub(match)"

Example

sub(mail) matches the phrase "Hexamail produces server software"

SUB

Case sensitive substring

Specify as

"SUB(match)"

Example

SUB(mail) does not match the phrase "HexaMail produces server software"

cmp

Case insensitive exact match

Specify as

"cmp(match)"

Example

cmp(mail) matches ONLY the entire exact string "mAil"

CMP

Case sensitive exact match

Specify as

"CMP(match)"

Example

CMP(mail) matches ONLY the entire exact string "mail"

word

Case insensitive word match

Specify as

" match " or "word(match)"

Example

word(mail) does not match the phrase "Hexamail produces server software" but does match the phrase "Hexamail produces mail server software"

WORD

Case sensitive word match

Specify as

"WORD(match)"

Example

WORD(Mail) does not match the phrase "Hexamail produces mail server software" but does match the phrase "Mail server software produced by Hexamail"

wild

Case insensitive wild match

Specify as

"*m?tch*" or "wild(*m?tch*)" (? - single character match, * - multiple character match)

Example

Example wild(*v?agra*) matches the phrase "Hexamail does not ship v1agra"

Note

the * wrappers round wildcard expressions, you can also do wild(Start*) to match the phrase "Start of the content" but not match "the content starts here"

WILD

Case sensitive wild match

Specify as

"WILD(m?tch)"

Example

WILD(*v?agra*) does not match the phrase "Hexamail does not ship V1agra"

Note

the * wrappers round wildcard expressions, you can also do WILD(*End) to match the phrase "The content End" but not match "the content ends here"

reg

Regular expression

Specify as

"reg(expression)"

Example

can be found at the website
http://www.regular-expressions.info/

REG

Case sensitive regular expression

Specify as

"REG(expression)"

Example

can be found at the website
http://www.regular-expressions.info/

BOOL

Boolean expression

Specify as

"BOOL(expression)"

Example

BOOL(wild(*viagra*) AND wild(*ph?rm?cy*) must match both wild matches to be considered an overall match. Brackets may be used.

Note

Brackets allow nested clauses in a BOOL expression

Icon key:

- If matched these expressions allow the email

- If matched these expressions add weight to the email score

- If matched these expressions mark the email

- If matched these expressions block the email

- If matched these expressions delete the email

Column Headings:(Click the heading to sort by the column)

Expression

The expression

Action

Action the expression has

Type

Type of expression

Buttons:(Underneath control)

Add

Add an expression

Test

Test a phrase against the expressions

Edit

Edit the selected expression

Delete

Delete the selected expression(s)

Import

Import expressions from a file

Export

Export the selected expressions to a file

Context Menu:(Right click selected items)

DNS checking

Use DNS URL Blocking

DNS based URL blocking lists can be used to match URL hosts contained in spam and take an action if found. This helps to block very short emails only containing links or emails with large amounts of text used to prevent content blocking. For more information please refer to http://www.surbl.org/ and http://www.spamhaus.org/ If a list is matched vs a URL host found in the email it will perform the action specified for the list entry. Many lists simply return 127.0.0.2 indicating a match and this is taken as the default match. Some combined lists require a bitmask to determine which sublist was matched. In these cases you can specify the bitmask to match using the notation: e.g. combined.dnslist.com:4 which will match only if the returned result is 127.0.0.4 Please consult the implementation guide for the lists you have configured and also any usage policies. In many cases lists are free to use only for a limited number of users or email per day. If you exceed the usage limits your server may be blocked from using the list or you may be required to pay a small fee to continue to use the list.

Expression types:

sub

Case insensitive substring

Specify as

simply "match" or "sub(match)"

Example

sub(mail) matches the phrase "Hexamail produces server software"

SUB

Case sensitive substring

Specify as

"SUB(match)"

Example

SUB(mail) does not match the phrase "HexaMail produces server software"

cmp

Case insensitive exact match

Specify as

"cmp(match)"

Example

cmp(mail) matches ONLY the entire exact string "mAil"

CMP

Case sensitive exact match

Specify as

"CMP(match)"

Example

CMP(mail) matches ONLY the entire exact string "mail"

word

Case insensitive word match

Specify as

" match " or "word(match)"

Example

word(mail) does not match the phrase "Hexamail produces server software" but does match the phrase "Hexamail produces mail server software"

WORD

Case sensitive word match

Specify as

"WORD(match)"

Example

WORD(Mail) does not match the phrase "Hexamail produces mail server software" but does match the phrase "Mail server software produced by Hexamail"

wild

Case insensitive wild match

Specify as

"*m?tch*" or "wild(*m?tch*)" (? - single character match, * - multiple character match)

Example

Example wild(*v?agra*) matches the phrase "Hexamail does not ship v1agra"

Note

the * wrappers round wildcard expressions, you can also do wild(Start*) to match the phrase "Start of the content" but not match "the content starts here"

WILD

Case sensitive wild match

Specify as

"WILD(m?tch)"

Example

WILD(*v?agra*) does not match the phrase "Hexamail does not ship V1agra"

Note

the * wrappers round wildcard expressions, you can also do WILD(*End) to match the phrase "The content End" but not match "the content ends here"

reg

Regular expression

Specify as

"reg(expression)"

Example

can be found at the website
http://www.regular-expressions.info/

REG

Case sensitive regular expression

Specify as

"REG(expression)"

Example

can be found at the website
http://www.regular-expressions.info/

BOOL

Boolean expression

Specify as

"BOOL(expression)"

Example

BOOL(wild(*viagra*) AND wild(*ph?rm?cy*) must match both wild matches to be considered an overall match. Brackets may be used.

Note

Brackets allow nested clauses in a BOOL expression

Icon key:

- If matched these DNS list servers allow the email

- If matched these DNS list servers add weight to the email score

- If matched these DNS list servers mark the email

- If matched these DNS list servers block the email

- If matched these DNS list servers delete the email

Column Headings:(Click the heading to sort by the column)

List Server

The DNS list server

Action

Action of the DNS list server

Status

Status of the DNS list server

Buttons:(Underneath control)

Add

Add DNS list server

Edit

Edit the selected DNS list server

Delete

Delete the selected DNS list server(s)

Context Menu:(Right click selected items)