Highlight new messages in web interface?

[c***@public.gmane.org]

Hello

I'm subscribed to a couple of mailing lists that rely on Sympa.

To keep my mailbox smaller, I'd like to stop the e-mail inflow and interact
with those mailing lists through Sympa's web interface instead.

I notice that Sympa relies on MHonArc: Does it highlight new messages so users
know instantly what new messages came in since the last time they checked, and
eg. provide a "Mark as read" link?

Thank you.