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MailScanner mailto: false positives

Posted: 13 Jul 2022 15:20
by max_of_tl
Hi,

I am getting false positives with bad URL for mailto: address links. An example:

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MailScanner has detected a possible fraud attempt from "domain.com" claiming to be mailto:user@domain.com
The following was added to /etc/MailScanner/phishing.safe.sites.conf:

mailto:*
*.domain.com

This did not fix the false messages.

Does anyone know what might cause this?


Thanks guys ,

Max

Re: MailScanner mailto: false positives

Posted: 13 Jul 2022 19:37
by max_of_tl
In the meantime,

In

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/etc/MailScanner/MailScanner.conf
I changed:

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Highlight Mailto Phishing = no
I did not notice this until just recently (after hacking around in Message.pm). This may be my solution.

Re: MailScanner mailto: false positives

Posted: 16 Jul 2022 19:08
by shawniverson
8-)

Re: MailScanner mailto: false positives

Posted: 09 Aug 2022 07:38
by pdwalker
max_of_tl wrote: 13 Jul 2022 15:20 Hi,

I am getting false positives with bad URL for mailto: address links. An example:

Code: Select all

MailScanner has detected a possible fraud attempt from "domain.com" claiming to be mailto:user@domain.com
The following was added to /etc/MailScanner/phishing.safe.sites.conf:

mailto:*
*.domain.com

This did not fix the false messages.

Does anyone know what might cause this?


Thanks guys ,

Max
According to phishing.safe.sites.conf
# Add your custom Phishing safe sites to the
# phishing.safe.sites.custom file in your MailScanner
# directory. Note that phishing.safe.sites.conf is
# overwritten when ms-update-phishing is executed.
So I've added my entries into phishing.safe.sites.custom:
*.domain.com
and then I have run the ms-update-phishing command

It works perfectly for me.

I do have to keep an eye on the messages coming in so I can update valid domain links send on behalf of another party.