> I'm successfully sending email to gmail accounts, but Yahoo insists upon marking them as spam -- they are not spam, they are 'transactional' as they say. This isn't a rails question per say, but, I know that there are some really smart folks on this list who might be able to point me to a good resource.
> I've been pointed to links about SPF records, but I'm not clear about how t apply the knowledge presented there.
> Any takers?
You can put an SPF record for your server into DNS and it will help.
That means you need control of your DNS server.
In general, people who understand spam will always guess that DNS is the
issue. You want good forward and reverse DNS on the server that is
sending mail, and ideally it will be listed as an MTA for the sending
domain (that looks pretty good to anti-spam systems).
Aside from that, try to make sure you don't put any links in the email
that are suspicious looking. The DNS for those links should be flawless
and the landing pages benign.
Other than that, Yahoo is a bit touchy on the spam. I assume you are
not doing anything obviously spammy content-wise and that the recipients
are not marking your mail as spam. There isn't too much else you can do.
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