On 02/14/2011 12:37 AM, Franck MAHE wrote:
I did the test on the From header, so I don't understand why the if
!/^From:.*<.*@.*>/ don't catch
header From: use&r...@domain.tld
A. It does catch that, since it doesn't contain either < or >.
But
B. That is unlike anything you have shown before.
However, your regex for case #4 only requires the LAST character of the
locapart to be invalid.
I want to catch all character not compliant with the standard in the
From Header.
Then use that range of invalid characters and forbid it anywhere in the
localpart:
/^From:.*[[\]()`;,\^#:|\\@<>/! $"%&'].*@.*/
Repeat it in the domain part if you so desire.
Franck
-------------------------------------------
E: m...@civis.net <mailto:m...@civis.net>
*De :* owner-postfix-us...@postfix.org
[mailto:owner-postfix-us...@postfix.org] *De la part de* Jeroen Geilman
*Envoyé :* lundi 14 février 2011 00:16
*À :* postfix-users@postfix.org
*Objet :* Re: Issue with header_checks
On 02/14/2011 12:13 AM, Franck MAHE wrote:
Hi,
OK, but the REJECT 3 works fine, so I think it is an issue with the
if, but I don't see why.
Define "works fine".
What headers did you test, and what was the result ?
Franck
-------------------------------------------
M: +33 6 6042 7249
E: m...@civis.net <mailto:m...@civis.net>
*De :* owner-postfix-us...@postfix.org
<mailto:owner-postfix-us...@postfix.org>
[mailto:owner-postfix-us...@postfix.org] *De la part de* Jeroen Geilman
*Envoyé :* dimanche 13 février 2011 23:49
*À :* postfix-users@postfix.org <mailto:postfix-users@postfix.org>
*Objet :* Re: Issue with header_checks
On 02/13/2011 10:33 PM, Franck MAHE wrote:
Hello,
I've the following in main.cf
header_checks = regexp:/etc/postfix/regexp_table
My postfix release is 2.3.8
I've the following in my header_checks regex table:
# MAL FORMATED EMAIL ADDRESS
/^From:.*\.@.*/ REJECT "1 - Your Email address is not
compliant with RFC, Go Away"
/^From:.*<.*\.\..*@.*> <mailto:.*%5C.%5C..*@.*>/ REJECT "2 - Your
Email address is not compliant with RFC, Go Away"
/^From:.*<.*(\[|\]|\(|\)|\`|\;|\,|\^|\#|\:|\||\\|\@|<|>|\/|\!|\
|\$|"|"|\%|\&|').*@.*>/ REJECT "3 - Your Email address is not
compliant with RFC, Go Away"
if !/^From:.*<.*@.*> <mailto:.*@.*>/
/^From:.*(\[|\]|\(|\)|\`|\;|\,|\^|\#|\:|\||\\|\@|<|>|\/|\!|\
|\$|"|"|\%|\&|')@.*/ REJECT "
<mailto:%7C%5C%25%7C%5C&%7C%27%29@.*/%A0%A0%A0%A0REJECT>4 - Your Email
address is not compliant with RFC, Go Away"
endif
All is fine for REJECT 1, 2 & 3, however when the From field is only
"From: u...@domain.tld <mailto:u...@domain.tld>", the REJECT 4 is not
taken into account, ie the REJECT 4 seems not to be tested. So, it
seems that the if...endif block is not working.
Do you have any idea to solve that?
Franck
-------------------------------------------
E: m...@civis.net <mailto:m...@civis.net>
"From: u...@domain.tld <mailto:u...@domain.tld>" does not match
/^From:.*(\[|\]|\(|\)|\`|\;|\,|\^|\#|\:|\||\\|\@|<|>|\/|\!|\
|\$|"|"|\%|\&|')@.*/
The regex requires the locapart to end with one of the listed
characters; your example does not, it is perfectly valid.
I would also implore you to use character classes to make this less
unreadable:
/^From:.*[[\]()`;,\^#:|\\@<>/! $"%&']@.*/
In a regex character class, almost all characters lose their special
meaning, so they don't have to be escaped.
But as stated above, requiring one of these characters between the
localpart and the @ sign will not match the valid address you gave as
an example.
--
J.
--
J.
--
J.
