On 02/08/18 16:23, David Jones wrote: > On 02/07/2018 06:28 PM, Dave Warren wrote: >> On Wed, Feb 7, 2018, at 15:52, Martin Gregorie wrote: >>>> Technically, you asked for the email and they have a valid opt-out >>>> process that will stop sending you email. Yes, the site has scummy >>>> practices but that is not spam by my definition. >>>> >>> Yes, under EU/UK that counts as spam because the regulations say that >>> the signer-upper must explicitly choose to receive e-mail from the >>> site, and by-default sign-in doesn't count as 'informed sign-in'. >> >> Canadian law is the same, this is absolutely spam without any ambiguity. >> > > But how can you tell the difference based on content then? You can't. Two > different senders could send the exact same email and one could be spam from > tricking the recipient to opt-in and another could be ham the recipient > consciously opted into. > > This would have to be blocked or allowed based on reputation. One would > train the message as spam in their Bayes database and allow trusted senders > via something like a domain whitelist, URI whitelist, or a whitelist_auth > entry. > > We are back to needing a curated WL based on something like DKIM. Alex just > made me aware of http://dkimwl.org/ which looks brilliant. Exactly lines up > with how I filter and what I have been wanted to do for a couple of years > now. A community-driven clearing house for trusted senders. > dkimwl.org looks promising, but tell them their https cert has expired. Giovanni

- Re: Barracuda Reputation Block List (BRBL) removal f... David B Funk
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- Email filtering theory and the definition of spam David Jones
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- Re: Email filtering theory and the definition of spa... Miles Fidelman
- Re: Email filtering theory and the definition of spa... jdow
- Re: Email filtering theory and the definition of spa... David Jones
- Re: Email filtering theory and the definition of spa... Martin Gregorie
- Re: Email filtering theory and the definition of spa... Dave Warren
- Re: Email filtering theory and the definition of spa... David Jones
- Re: Email filtering theory and the definition of spa... Giovanni Bechis
- Re: Email filtering theory and the definition of spa... Tom Hendrikx
- Re: Email filtering theory and the definition of spa... Paul Stead
- Re: Email filtering theory and the definition of spa... Martin Gregorie
- Re: Email filtering theory and the definition of spa... jdow
- Re: Email filtering theory and the definition of spa... jdow
- Re: Email filtering theory and the definition of spa... Rupert Gallagher
- Re: Email filtering theory and the definition of spa... @lbutlr
- Re: Email filtering theory and the definition of spa... LuKreme
- Re: Email filtering theory and the definition of spa... Rupert Gallagher
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