Setting up a smarthost doesn't require ssl as far as I know. I would highly recommend using ssl here though, so your users don't send credentials in the clear. I think anyone who has dealt with ssl will tell you that it's tough to wrap your head around it. I personally figured out what I needed to know as I went along, usually by googling what I wanted to know. I never used sendmail, so can't help with that. Greg On Fri, Jun 21, 2013 at 10:32:30AM -0400, Jayson Smith wrote: > Hi, > > I have never quite figured out how to enable authentication in > Sendmail, where an authenticated client can relay mail through it. > Does this require SSL or something similar? I've never quite gotten > the hang of SSL certificates, etc. either. Any help would be grately > appreciated. > Thanks. > Jayson > > _______________________________________________ > Speakup mailing list > Speakup at linux-speakup.org > http://linux-speakup.org/cgi-bin/mailman/listinfo/speakup > -- web site: http://www.gregn..net gpg public key: http://www.gregn..net/pubkey.asc skype: gregn1 (authorization required, add me to your contacts list first) -- Free domains: http://www.eu.org/ or mail dns-manager at EU.org