Spamassassin, only checking message header if total weight is over 500kb?

Question

Email

I noticed one nasty office (Alga-S), which adds a photo to its spam, and therefore the weight of the letter exceeds 500 kb.
Spamassassin does not take on such a letter, fearing that it will spend a lot of time processing, which raises the question.
Can it be configured in such a way that when the maximum weight of the letter is exceeded, let's say in the standard 500 kb, only the headers are checked?
PS I know that it is possible to increase the maximum size of a message that will be processed by antispam.
I increased it to one megabyte, but there are letters that can weigh 1.1 mb, and this is not a solution in my opinion.

Answer 1

It's easier to set up header-level filtering in postfix.
You have to turn your head on.