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Home :: Email
11 Mar 2020
A recent piece in The Markup called
Swinging the Vote?
attempts to figure out how Google decides where to deliver political e-mail.
They were startled to discover that only a small fraction of it was delivered
into the main inbox, and a fair amount was classed as spam.
They shouldn't have been.
See more ...
Stable link is https://jl.ly/Email/notspecial.html
07 Sep 2019
The DNS has always had a few names for use as examples in documentation,
domains example.com, example.net, example.org,
and example.edu.
In 1999 RFC 2606 formally reserved the first three.
There's nothing technically special about these names,
which have normal WHOIS and DNS entries, managed by IANA.
Until recently, that meant that even though none of them handle
any e-mail, mail sent to them by mistake worked badly.
See more ...
Stable link is https://jl.ly/Email/exampnull.html
28 May 2019
The IETF's DMARC working group
is thinking about a maintenance update to the DMARC spec, fixing bits that are unclear and
perhaps changing it where what mail servers do doesn't exactly agree with what it says.
Someone noted that a lot of mailers claim to have ``deployed DMARC'', and it's not at
at all clear what that really means.
See more ...
Stable link is https://jl.ly/Email/dmarcwhat.html
03 May 2018
Recently I've been working on EAI mail, looking at what software is
available (Gmail and Outlook/Hotmail both handle it now) and what
work remains to be done.
A surprisingly tricky part is assigning EAI addresses to users.
In traditional ASCII mail, the local part of the address, what
goes before the @ sign, can be any printable ASCII characters.
Although an address like %i()/;~f@examp1e.com is valid, and
mail systems will handle it, users don't want addresses like
that.
A good address is one that is easy to remember, easy to tell someone over the phone,
and easy to type.
Mail systems all give senders some help
when interpreting addresses. If an address is Bob@example,
they'll accept bob@ or BOB@. If the address is joe.smith@,
they'll accept Joe.Smith@ and often variations in punctuation
like joesmith@ without the dots.
The flip side of this is that you don't assign different addresses
that are too similar. While it is techincally possible that BOB@
and bob@ could deliver to different mailboxes, nobody does that.
Similarly, nobody makes joesmith@ and joe.smith@ different.
(They may not both work, but if they do, they're the same mailbox.)
The domain (the part of the address after the @ sign) has to follow the
DNS rules, which don't allow any fuzzy matching other than ASCII upper
and lower case.
How does all this extend into EAI mail?
See more ...
Stable link is https://jl.ly/Email/eaiaddr.html
21 Apr 2017
Classified ad site craigslist is famously protective of its contents.
While they are happy for search engines like Google to index the
listings, they really, really do not like third parties to scrape
and republish their content in other forms.
In 2013 craigslist sued a company called 3taps which had created
an API for craigslist data. They also sued real estate site Padmapper, which
showed craigslist and other apartment listings on a map, something
craigslist didn't do at the time.
After extensive
legal wrangling,
3taps eventually gave up and in 2015 paid craigslist $1 million and shut down.
Craigslist donated the money to the EFF which was a little odd since the EFF
had generally supported 3taps.
One of 3taps' other customers was another real estate site Radpad, which
kept showing craigslist listings after 3taps shut down.
See more ...
Stable link is https://jl.ly/Email/radpad.html
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Dave Piscitello on Ransomware
54 days ago
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600 days ago
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