My longest addresses are from SalesForce.com, with 6 segments. Relatively small dataset.
---------------------------------------- From: Laura Atkins <la...@wordtothewise.com> Sent: 11/23/20 8:19 AM To: "Murray S. Kucherawy" <superu...@gmail.com> Cc: IETF DMARC WG <dmarc@ietf.org> Subject: Re: [dmarc-ietf] tree walk and Org and PSD, Second WGLC for draft-ietf-dmarc-psd On 22 Nov 2020, at 06:06, Murray S. Kucherawy <superu...@gmail.com> wrote: On Sat, Nov 21, 2020 at 6:23 PM John Levine <jo...@taugh.com> wrote: It is my impression that most real From: domains are pretty short. I don't think I've ever seen one more than four labels long that wasn't deliberately contrived. Anyone got data on that? I'd bet there are some in .gov or .mil, especially the latter, but otherwise I think the longest one I've seen is five, and that was not a host that receives mail. I'm sure we can all scrape our own mail logs for evidence either way. This might be a place where one (or more) of the big ESPs can help. They're going to have billions of email addresses and know which ones have MXs. I'm happy to ask for that data if it would be of use. laura -- Having an Email Crisis? We can help! 800 823-9674 Laura Atkins Word to the Wise la...@wordtothewise.com (650) 437-0741 Email Delivery Blog: https://wordtothewise.com/blog
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