Re: [exim] Fw: Gmail's new 'suspicious sender' flag

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Lähettäjä: Mike Cardwell
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Vastaanottaja: exim-users
Aihe: Re: [exim] Fw: Gmail's new 'suspicious sender' flag
On 05/07/2011 13:49, Zoe (Medway Hosting) wrote:

>> On a general basis, I recommend against using SPF,
>
> Would you care to explain why please ? Especially as many major ESPs score
> your emails down if you have none ?
>
> All the best
>
> Zoë
>
> p.s. Jan - Sorry you got 2 copies. I forgot the default reply address was
> the sender.


The main argument against SPF is that there can be false positives when
sending an email to an address which uses email forwarding, where the
forwarding service doesn't rewrite the sender envelope, and where the
service being forwarded to does strict SPF checks.

This isn't as big a problem as it's made out to be. I've been using
"-all" on my own personal mail for years now without noticing any problems.

--
Mike Cardwell https://grepular.com/ https://twitter.com/mickeyc
Professional http://cardwellit.com/ http://linkedin.com/in/mikecardwell
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