Hi, Robert -
I'm using 2048-bit keys here: both on our on-site mail gateways running
Exim (version 4.86.1 at present un Ubuntu) and at Google. That setup is
working OK re DKIM verification.
If you'd like to do an extra check, I find this DKIM validation site very
useful:
http://www.appmaildev.com/en/dkim/
Click the *Next Step* button to get a temporary address, send your test
message to it, and as soon as it arrives the page fills in with details
about whether SPF, DKIM and DMARC tests pass or fail.
Cheers,
Mike B-)
--
Systems Administrator & Change Manager
IT Services, University of York, Heslington, York YO10 5DD, UK
Tel: +44-(0)1904-323811
Web:
www.york.ac.uk/it-services
Disclaimer:
www.york.ac.uk/docs/disclaimer/email.htm
