Email clients do support landmarks and they should definitely be used (sparingly) to let users navigate emails more easily.
Landmarks in Email

Email clients do support landmarks and they should definitely be used (sparingly) to let users navigate emails more easily.
We’ve already talked about the functional side of links and how different users activate them. Today, we’re taking that info and expanding on it.
Because links are such critical elements of our emails, we should think about all the different parts of them that need accessibility support.
Links (technically hyperlinks) are the foundation of the internet. In its simplest form, a link is already accessible. You’d think that would mean that we wouldn’t have to think that much about them, but you’d be wrong.
There are few things as confounding in email development as the CTA link. Historically, getting anything other than an image to render has had considerable challenges. Many email developers have spent hours and hours tweaking their code to get a CTA link to visually render…
Every once in a while, people will bring up adding ARIA to their emails, and quite often, my response is, “NO!!” and I thought I’d go into a bit of detail to explain that.
Accessible headings in email seem to be a bit of a side quest for many email marketers. On its face, it seems very straightforward: Wrap the main points of the email in a heading tag…
Let’s solve the age-old problem called “How do I make a product stack look good AND make it accessible?”
Legal text is probably the least thought about component in all of emaildom. Let’s break it down!
Animated gifs are the darling of email marketing. There is quite literally no other way to add motion to an email that will display in nearly every single email client. Don’t believe me? Check out this caniemail.com overview on gifs. Unless you’re using an old/obsolete version of Outlook on a PC – you’re getting animated gifs. They even work on background images!