I still think it's mail.jobs@ - so I'd hope the engineer set up collection on both addresses.
It'd probably be a lot safer to just have the line be "jobs.at.[...]"
Edited to add: Oh also - from the same line you can infer that a dot means a dot - the ".org" at the end confuses the meaning. Perhaps it'd be clearer if they went 100% slashdot and had ".DOT.org"
Yes really, you can see even in the other replies the interpretations are not 100% clear.
It took me a minute to realize it wasnt some form of "mail+jobs" or "mail.jobs". It wasnt until I wrote the last line of my comment that it was "mail jobs@"