Problems with email delivery from sourceware?

Eli Zaretskii via Gdb-patches
2021-06-15T16:12:33Z

Is (or was?) something wrong with email delivery from sourceware? I'm
receiving only now some emails that were sent to the list 4 days ago.
The headers clearly show that the email messages were stuck on
sourceware.org for all those 4 days.

Does anyone know what is going on?

Sorry for slightly off-topic post.