[FFmpeg-devel] Mailing List Delay

[Soft Works]

> -----Original Message-----
> From: ffmpeg-devel <ffmpeg-devel-bounces at ffmpeg.org> On Behalf Of
> Michael Niedermayer
> Sent: Wednesday, 4 August 2021 23:16
> To: FFmpeg development discussions and patches <ffmpeg-
> devel at ffmpeg.org>
> Subject: Re: [FFmpeg-devel] Mailing List Delay
> 
> On Wed, Aug 04, 2021 at 10:58:26PM +0200, Michael Niedermayer wrote:
> > On Wed, Aug 04, 2021 at 01:10:00AM +0000, Soft Works wrote:
> > [...]
> >
> yes it looks like it is dnsbl & greylisting why am i not surprised it is sorbs ...
> anyway i removed sorbs from grossd i hope this wont add too much spam to
> the MLs and ML moderation ques
> 
> so this should be resolved
> please tell me if it happens again
> also if anyone knows other dnsbl lists we can add, please reply, more such
> lists improve spam filtering

Here's a larger list of working BLs: https://mxtoolbox.com/SuperTool.aspx?action=mx%3affmpeg.org&run=toolpage
I would use Wikipedia as cross-reference to make a selection: https://en.wikipedia.org/wiki/Comparison_of_DNS_blacklists

BTW, here's a collection of nice and useful tools to diagnose SMTP issues: https://mxtoolbox.com/SuperTool.aspx 


> grossd is a greylisting daemon, delaying is how it works.

Isn't that's a bit outdated? 
How is it configured - I mean which delay time? 
The default to be 10 seconds. Most mail servers will make another
delivery attempt within very few minutes at max. That doesn't quite 
explain a delay of 60 minutes. (yea, maybe it was the SORBS entry)

BLs shouldn't be the only spam-fighting method. What other checks
are in place?

Suggestions: 

- SPF
- DKIM
- DMARC
- DNSSec
- Reverse DNS Lookup
- TLS Connection/Remote host validation
- Connection frequency per remote host
- Mismatched (non-existent) e-mail addresses per remote host

softworkz