Spam filtering hyperlinks in body of message

Hi all – it appears some our lists are getting spam more frequently with messages that contain hyperlinks from different members (possibly from compromised emails). Two questions please:
a) Is it a good idea to block/filter out of messages that contain hyperlinks?
b) If so, how can this be done using spam filtering policy?
Thank you in advance for any insight.
Best,
Dang

On April 14, 2017 9:56:22 AM PDT, Dang Tran <dangtran04@gmail.com> wrote:
a) Is it a good idea to block/filter out of messages that contain hyperlinks?
If you mean hyperlinks in general, I think it's a really bad idea.
If you mean specific hyperlinks, e.g., with known phishing addresses, there are various MTA tools for this.
b) If so, how can this be done using spam filtering policy?
Mailman's spam filters work only on headers, not the message body.
See https://wiki.list.org/x/4030615
-- Mark Sapiro <mark@msapiro.net> Sent from my Not_an_iThing with standards compliant, open source software.

On April 14, 2017 9:56:22 AM PDT, Dang Tran <dangtran04@gmail.com> wrote:
a) Is it a good idea to block/filter out of messages that contain hyperlinks?
If you mean hyperlinks in general, I think it's a really bad idea.
If you mean specific hyperlinks, e.g., with known phishing addresses, there are various MTA tools for this.
b) If so, how can this be done using spam filtering policy?
Mailman's spam filters work only on headers, not the message body.
See https://wiki.list.org/x/4030615
-- Mark Sapiro <mark@msapiro.net> Sent from my Not_an_iThing with standards compliant, open source software.
participants (2)
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Dang Tran
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Mark Sapiro