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email tags and how to remove them

I am having trouble lately with sending faxes through Outlook through my Myfax account. Oddly enough, I have 4 numbers but one of them does not work when using Outlook. Their support states that there is header info coming from my mail server and needs to be removed before it can work again. Strange that the other 3 work fine. Anyway, I was wondering if anyone how or what to make changes on my spamfilter (Sonicwall) or Mail Server (Exchangeserver 2007) to eliminate. Something to do with the prvs= at the head of my address and it is being rejected. It's expecting to see just rderchan@visualdatainc.com. The system works by assigned users. If my email address is assinged to that fax number, it gives me permission to send. Read the support comment below please.


"This may help you. We are seeing your email address for the email quoted below as prvs=158861db21=rderchan@visualdatainc.com rather than just rderchan@visualdatainc.com. It's that prefix that is causing the issue most likely.
 
Please let us know if you have any other questiosn."
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vdms
Asked:
vdms
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1 Solution
 
tenaj-207Commented:
The prvs= is called BATV and is used to reduce the NDR backscatter.  It's a good thing, but you can turn it off if you want.

Here's how to disable BATV per the Sonicwall Email Security admin guide (https://www.sonicwall.com/app/projects/file_downloader/document_lib.php?t=PG&id=14)

To enable[/disable] BATV
1. Log into your Email Security as an administrator.
2. Choose System from the left navigation bar.
3. Choose Connection Management.
4. Scroll down to the Quality of Service section.
5. Click in the Bounced Address Tag Validation to enable[/disable] BATV.
6. Click Apply Changes.
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Manpreet SIngh KhatraSolutions Architect, Project LeadCommented:
BATV prvs= issue
http://forums.msexchange.org/m_1800517971/mpage_1/key_/tm.htm

Exactly same issue mentioned.

- Rancy
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vdmsAuthor Commented:
Thank you both.  Can I ask what NDR back scatter is?
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Manpreet SIngh KhatraSolutions Architect, Project LeadCommented:
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tenaj-207Commented:
NDR = Non delivery report, which is a message sent back to the sender when their email doesn't get delivered.

Back scatter = invalid network traffic caused by spoofed emails.

When a spammer uses your domain name to send emails from their spam servers (aka spoofing), NDRs get sent back to your server, this is called back scatter.   Too much back scatter can cause connectivity issues with the internet.

-Jeff
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vdmsAuthor Commented:
Thank you so much. This process worked for me. ALthough relunctant to turn off any security features, I will do so. It fixed my problem but I certainly do not want a any more spoofing than I already have so I always have the option to turn it back on.
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vdmsAuthor Commented:
Excellent and accurate info and easy to understand.
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