> I'm using sendmail version 8.14.5.
Oh wow, that's only 4 years old...
> was just wondering if sendmail supports SHA-2 ok.
If you use a recent OpenSSL version: yes.
You also should to update to 8.14.9 or 8.15:
8.14.8/8.14.8 2014/01/26
Properly initialize all OpenSSL algorithms for versions before
OpenSSL 0.9.8o. Without this SHA2 algorithms may not
work properly, causing for example failures for certs
that use sha256WithRSAEncryption as signature algorithm.
--
Note: please read the netiquette before posting. I will almost never
reply to top-postings which include a full copy of the previous
article(s) at the end because it's annoying, shows that the poster
is too lazy to trim his article, and it's wasting the time of all readers.