I'm in the same boat...I tried various email servers/ports/gmail's app/etc., to see if I could still do 'SSL' emails. Nothing...nada.
I have two cams DS-2CD3132F-IWS and DS-2CD3132-I
Running V5.2.5build 141201 firmware in both.
So, I have two cams that I can still see via cellphone, computer...