SRS: Sender Rewriting Scheme

Now that ISP's are checking SPF records, I have two questions:

  1. If I'm sending email from a domain, what setting should I use for my domain's SPF record (none, fail, softfail. pass)?
  2. Will messages sent though HSphere forwards use SRS (Sender Rewriting Scheme) so that the SPF record lookup will come our right?

How can I whitelist computers using Jodo's SMTP servers so the lookup for the messages sent from those servers comes out right? Do I need to set my SPF to 'Pass' for those domains which somewhat defeats the purpose of SPF?

Thanks for any help on this.

Tim
 
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