A lot of spam is marked as "no spam" recently

[Tode1976]

Hi,
One of my main mail addresses seams to have landed on a spammers list and I get a lot of spam mails in "waves" to that mail address. The spamassassin score is 0 - 1 so it would not help to lower the threshold as this would catch more ham as well.

All these mails are built identically: They have one line with a link then an image containing the "message" (so that it cannot be analyzed by a text analyzer) and then finally another link to unsubscribe that points to a random unsubscribe list that has nothing to do with the sender.

I assume that these mails are not recognized as spam because they contain not enough text to be analyzed and categorized.
How can I make efa recognize these mails as spam?

Thank you in advance

[Justinn]

Hi,
One of my main mail addresses seams to have landed on a spammers list and I get a lot of spam mails in "waves" to that mail address. The spamassassin score is 0 - 1 so it would not help to lower the threshold as this would catch more ham as well.

All these mails are built identically: They have one line with a link then an image containing the "message" (so that it cannot be analyzed by a text analyzer) and then finally another link to unsubscribe that points to a random unsubscribe list that has nothing to do with the sender.

I assume that these mails are not recognized as spam because they contain not enough text to be analyzed and categorized.
How can I make efa recognize these mails as spam?

Thank you in advance

To help EFA recognize these emails as spam, try creating custom rules that search for specific domains, IPs, or keywords in the subject or content. You could also try analyzing the images for hidden text or links. Additionally, training a Bayesian filter with examples of these emails could help it recognize them more accurately over time.