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SMG 9.5.3-3 Bounce attack prevention - VMware app.

Updated: 24 Jan 2012 | 6 comments
PaJi's picture
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This issue has been solved. See solution.

Hi all,
SMG 9.5.3-3 Bounce attack prevention - VMware appliance.

I had to switch off (uncheck) in SPAM policies, because a lot of servers don't accept the added tag, if its verify the user(s).

I would like to ask you, where is stored exactly the tag in the message and the name of this tag? I mean technicaly. I didn't find any more detailed technical explaining on Symantec WEB. If I view the source code (property) in Outlook express I see nothing. I don't know, what should I find. Or is it only added at the beginning initial dialog? "MAIL From:" ??? What is the proper syntax?

Thanx for your advices.
Pavel

Comments

TSE-JDavis's picture
23
Jan
2012
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The string is generated from

The string is generated from the seed that is provided under Administration -> Control Center -> Certificates.

PaJi's picture
24
Jan
2012
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SMG 9.5.3-3 Bounce attack prevention - VMware app.

Hi TSE-JDavis

Thanx. I know that, I know set it.

But I ment where is inserted the tag in the dialog between SMTP?

Single/Easy SMTP dialog looks like this:

220
EHLO domain0.xx
250
MAIL FROM: <user0@domain0.xx>
250
RCPT TO: <user1@domain1.xx>
250
RCPT TO: <user2@domain1.xx>
250
DATA
354
.
250
QUIT
221

I asked, how is modified similar dialog, or if the tag is in the form "X-blabla" in the header (I didn't see any visible changes in header). I don't know the technical solution. (I don't have problem with setting.....). For me it is very difficult to discover and test settings on production system 365x7x24.

Thanx.

PaJi

fferaboli's picture
24
Jan
2012
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Hi, the feature rewrites the

Hi,

the feature rewrites the outbound mail from (envelope) address. 

Is that the information you are looking for?

Regards,

Federico

PaJi's picture
24
Jan
2012
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Hi Federico, yes, but how

Hi Federico,

yes, but how looks the new information?

Standard is:

MAIL FROM:<user@domain.com>

How looks the new edited line? Sure we are talking about the envelope, not header....

Thanx

PaJi

fferaboli's picture
24
Jan
2012
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Hi, is pretty much as

Hi,

is pretty much as described here:

http://en.wikipedia.org/wiki/Bounce_Address_Tag_Validation

"mailbox@example.com with prvs=tag-value=mailbox@example.com, where prvs, called "Simple Private Signature""

 

HTH,

Federico

PaJi's picture
24
Jan
2012
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Thanx

Thank you very much to all.

PaJi