On 2023-03-01 at 10:12:50 UTC-0500 (Wed, 1 Mar 2023 16:12:50 +0100)
Fourhundred Thecat <400the...@gmx.ch>
is rumored to have said:

On 2023-03-01 16:05, Bill Cole wrote:
On 2023-03-01 at 07:05:11 UTC-0500 (Wed, 1 Mar 2023 20:05:11 +0800)
Ken Young <ken@highwinds.cloud>

Disregard mail-tester.com's misuse of SpamAssassin. It does not reflect the real-world use of SA and is chronically out of date, with apparently localized scores applied to obsolete rules. This is enough of a problem that if I see a citation of mail-tester.com in a formal SA bug report, I
will reject it as invalid by default. With a scolding.

This is particularly true for deliverability issues with major mailbox
providers. They do not use SA.

are there other online testing websites, that give better real-life
results than mail-tester ?

Not to my knowledge. It is a fundamentally flawed concept. There is no definitive standard for deliverability and no broadly accepted set of best practices that are anywhere near a complete solution.

No 2 mail systems use the same filtering. Even if you look at all sites using one tool, like SpamAssassin, there is diversity because all good anti-spam tools are designed for local customization and because nearly all sites use layered protection, with their own bespoke collection of tactics around any common tools.

For the major mailbox providers, there seems to be some convergent evolution. They all use their own unique systems, but the similarities of their mail streams and strategic choices (consequences of their scale and diversity) have led to similar behaviors. That can be misleading, because their tools are NOT the same and more importantly are NOT like the publicly available tools.

In the case of SpamAssassin (the most broadly deployed publicly available spam filtering tool) you can test a message against a generic installation, but that won't tell you much that is useful because a generic installation isn't very good for anyone.

--
Bill Cole
b...@scconsult.com or billc...@apache.org
(AKA @grumpybozo and many *@billmail.scconsult.com addresses)
Not Currently Available For Hire

Reply via email to