Thanks Lonnie! Deep linking to the specific material was much appreciated. One more question (below)
> > Why isn't there just one standard prefix? > Check. I may want to be able to use BOTH mailgun and mandrill. I can have arbitrary subdomains. > How does that querying server know which to query? > Check. It's the 's' key in the outbound SMTP message. > Isn't _ an illegal character? > Check. Only sometimes. http://domainkeys.sourceforge.net/underscore.html BUT... If it's supposed to be arbitrary, why does everyone use the same 5+ prefixes rather than randomly assigning a unique 6 character prefix? I suppose it's memorable and I probably won't have more than 5 services handling my outbound email. And I suppose that if both mailgun and mandrill both direct me to use mx._domainkey I can send them a support email or click the delete and create buttons to try again. Is that it, just a happy-medium of a convention? AJ ONeal /* PLUG: http://plug.org, #utah on irc.freenode.net Unsubscribe: http://plug.org/mailman/options/plug Don't fear the penguin. */
