[tzs]

Regular mail, yes. Email, though, is largely just a waste of time.

Way too much non-spam disappears down overeager spam filters, which most people only check if they are specifically expecting some particular mail and it does not show up as expected--and even then many won't check their filters.

An ISP could white list their own mail in their spam filters but that would only help with the customers who use their ISP provided email. A lot of people use third party email providers instead and never use their ISP email.

[jclulow]

I find the reverse is true. My USPS mailbox receives daily credit card application forms, electoral flyers, catalogues, etc. I also get frequent mail from Comcast but they are _all_ bullshit ads, trying to hoodwink me into cable TV. I don't open them anymore, they just go in the bin.

I will at least _glance_ at my email.

[pbhjpbhj]

They could sign their messages? Also needs users to have easy to use mua that handles signing and shows "this is genuinely from your ISP unless they/you've been hacked".

For critical service info I'd want SMS personally, from a verified number with a link on the company main domain to verify the info.