Having the mail bounce at the edge is a VERY useful signal for any spammers trying to enhance their deliverability. This question has different answers depending on if you're guarding 1 mailbox, 10 - 100,000 or over a million. The larger the number of mailboxes, the more we need to do filtering post-DATA. And yes, seriously agree with Laura.
Aloha, Michael. -- Michael J Wise Microsoft Corporation| Spam Analysis "Your Spam Specimen Has Been Processed." Open a ticket for Hotmail<http://go.microsoft.com/fwlink/?LinkID=614866> ? From: mailop <mailop-boun...@mailop.org> On Behalf Of Luis E. Muñoz via mailop Sent: Monday, October 14, 2019 10:18 AM To: MailOp <mailop@mailop.org> Subject: Re: [mailop] Do we need Spam folders? On 14 Oct 2019, at 9:29, Chris Wedgwood via mailop wrote: as things stand today, i think we do technology has gotten very good but it's not perfect; sometimes spam isn't detected, and sometimes real messages are detected as spam I would rather have the email bounce during SMTP transaction. At least that way, the sender knows that the recipient won't get the message. Otherwise, the message will sit unread for 14 days before being auto-deleted with nobody ever looking at it. Not having spam folders also nails the "I moved this bazillion emails into the <misleading-word> folder because I don't want them anymore". Unfortunately, the user moving messages in and out of spam folders is a useful signal for the mailbox providers. I wonder if using the \Spam flag would be a better option. Allowing the MUA to control presentation altogether. Best regards -lem
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