Re: Gmail and SPF

Chris J Dixon wrote:

but find myself totally unable to understand exactly what to do.
It also seems like trial and error is not a good way to go, if I
correctly understand that updated entries can take up to 48 hours
to propagate.

I remember other heart customers having similar issue (no SPF at all, or incorrect SPF) but can't remember if heart fixed it after a phone call, or the customers fixed it by leaving heart!
In short what you need is that heart add an SPF record to the DNS for your cdixon.me.uk domain containing
v=spf1 include:_spf.virginmedia.com ~all
which tells other email servers "when you're checking if I'm legit, allow the servers that virgin nominate as valid" and "meh to anything else", but not actually "block anything else".
If you use other email servers in addition to virgin's (e.g. your mobile provider when away from home) then they need to be included too.