Asking for opinions about postwhite.
https://github.com/stevejenkins/postwhite
Below is the default whitelist domains. It's nice idea, but what about
the time when spammers got hold of 10.000 hotmail accounts?
OTOH this is only for postscreen and not whitelisted your antispam
engine so seems like a good idea. Really like to know arguments against
using this, please speak up.
webmail_hosts="aol.com google.com microsoft.com outlook.com hotmail.com
gmx.com icloud.com mail.com inbox.com zoho.com fastmail.com"
social_hosts="facebook.com facebookmail.com twitter.com pinterest.com
instagram.com tumblr.com reddit.com linkedin.com"
commerce_hosts="craigslist.org amazon.com ebay.com paypal.com"
bulk_hosts="sendgrid.com sendgrid.net mailchimp.com exacttarget.com
cust-spf.exacttarget.com constantcontact.com icontact.com mailgun.com
fishbowl.com fbmta.com mailjet.com sparkpost.com sparkpostmail.com"
misc_hosts="zendesk.com github.com"
