Showing posts with the label email forwarding

Email forwarding in 2025: Ugh!

Email forwarding is a huge pain in the rear end. Various smart people have various, differing opinions on why. My opinion is that we can thank spammers for screwing things up. Ever since the first necessary attempts to block open relay spam, and followed shortly thereafter by bigger steps toward mailbox provider spam filtering based on IP reputation, we should have realized that email transm…
Read more

Oof; exploitable loopholes in email forwarding

The Register's Thomas Claburn details a recently shared research paper exposing troubling examples of loopholes in email authentication , allowing bad guys to spoof messages via email forwarding. Thankfully, some of the potential loopholes reported have already been address…

ARC: What is it and why should you care?

ARC ( Authenticated Received Chain ) is an email authentication mechanism, sort of. The point of ARC is to encapsulate a check of email authentication results and include it in forwarded mail. If I receive email at an address, then I forward mail to another address, authenticat…

Howto: Forward email automatically

A simple tip for you today: If you ever switch up your email address, especially if you decide to change which service you use for your personal email inbox, you might want to configure things so that mail sent to your old email address is forwarded to your new email address au…

Re-visiting mail forwarding in a DMARC world

Forwarding email messages automatically can be tricky, as evidenced by recent conversation on the Mailop list. Email forwarding always breaks SPF authentication, and can easily break DKIM authentication if you modify any of the headers (and knowing which headers to stay away f…

Yahoo! Mail: No Forwarding for you

It is being reported that Yahoo! Mail has disabled the ability for users to enable email forwarding. If you already have the feature enabled, you might be fine. But if not, there's no turning it on now. Conspiracy theorists say it's a play to keep people from leaving Ya…