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Internal emails marked as SPAM?? [message #131204]

Thu, 04 August 2016 11:31

DeepThought
Messages: 72
Registered: March 2014

Is there any reason why an internal email is marked as spam? Ie one email to another both on the same domain...

Whats the best method for whitelisting these emails?

Cheers

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Re: Internal emails marked as SPAM?? [message #131207 is a reply to message #131204]

Thu, 04 August 2016 13:37

Pavel Dobry (Kerio) is currently offline

Pavel Dobry (Kerio)
Messages: 2057
Registered: October 2003
Location: Czech Republic

philstone wrote on Thu, 04 August 2016 11:31

Is there any reason why an internal email is marked as spam? Ie one email to another both on the same domain...

Whats the best method for whitelisting these emails?

Cheers

You can find the reason in email headers, look for X-Spam-Status.
By default, internal emails should not be scanned by anti-spam if the antispam and SMTP Relay options are configured properly.

Knowledge Base: http://manuals.gfi.com/en/kerio/home/Content/Home.htm.

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Re: Internal emails marked as SPAM?? [message #131211 is a reply to message #131204]

Thu, 04 August 2016 16:45

lodewijk
Messages: 50
Registered: August 2005
Location: Amsterdam

philstone,

we had the same strange issue where the new bit defender anti-spam would tag internal mail too.

Kerio support gave us a work around that has been working very well for us; create a custom rule under the anti-spam settings in the kerio admin and add a score of minus 10 to email from internal domain.

see attached screenshot (if i managed to attach it...)

Attachment: Screen Shot 2016-08-04 at 16.38.09.png
(Size: 51.92KB, Downloaded 359 times)

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Re: Internal emails marked as SPAM?? [message #131218 is a reply to message #131211]

Thu, 04 August 2016 18:43

Bud Durland
Messages: 586
Registered: December 2013
Location: Plattsburgh, NY

lodewijk wrote on Thu, 04 August 2016 10:45

Kerio support gave us a work around that has been working very well for us; create a custom rule under the anti-spam settings in the kerio admin and add a score of minus 10 to email from internal domain.

That works until your domain is spoofed.

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Re: Internal emails marked as SPAM?? [message #131219 is a reply to message #131218]

Thu, 04 August 2016 18:52

lodewijk
Messages: 50
Registered: August 2005
Location: Amsterdam

hmmmm...I didn't think of that side effect Bud Durland

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Re: Internal emails marked as SPAM?? [message #131223 is a reply to message #131218]

Thu, 04 August 2016 21:05

Pavel Dobry (Kerio)
Messages: 2057
Registered: October 2003
Location: Czech Republic

Bud Durland wrote on Thu, 04 August 2016 18:43

lodewijk wrote on Thu, 04 August 2016 10:45

Kerio support gave us a work around that has been working very well for us; create a custom rule under the anti-spam settings in the kerio admin and add a score of minus 10 to email from internal domain.

That works until your domain is spoofed.

Which can't be spoofed if you use Sender Policy setting and SPF.

Knowledge Base: http://manuals.gfi.com/en/kerio/home/Content/Home.htm.

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Re: Internal emails marked as SPAM?? [message #131448 is a reply to message #131204]

Thu, 18 August 2016 12:24

DeepThought
Messages: 72
Registered: March 2014

Hi,

This is the X-Spam Status..

X-Spam-Status: Yes, hits=1.1 required=0.5
tests=AWL: -0.054,BAYES_00: -1.665,DOS_OUTLOOK_TO_MX: 2.845,
FSL_HELO_NON_FQDN_1: 0.001,HTML_MESSAGE: 0.001,URIBL_BLOCKED: 0.001,
TOTAL_SCORE: 1.129,autolearn=no

Could you give some guidance on the correct config for internal emails and SPF?

Cheers

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