PLoS Biology published an article entitled Open Education, Open Minds, in which they solicited ideas for contributions to a series on life sciences education:
Contributions to the Education Series are encouraged; ideas should be sent to email@example.com.
So I sent in an e-mail and got back
> This message was created automatically by mail delivery software. > > A message that you sent could not be delivered to one or more of its > recipients. This is a permanent error. The following address(es) failed: > > firstname.lastname@example.org > retry timeout exceeded
Hmm. Either they have a very intelligent spam filter that filters on content relevance to the Open Education series (and I failed the filter), or they failed to actually try sending themselves e-mail...
(This was duplicated by someone else, sending from a different e-mail server. So it's not just me.)