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Ask HN: How do you stop an app's email getting flagged as spam?

3 points by eliot_sykes 16y ago

Just saw Reddit's state of the servers report which included information on how sending email via Amazon EC2 causes it to get flagged as spam thanks to Trend Micro. Regardless of whether you are using EC2 or not - how do you try to stop your app's email getting flagged as spam? What can you do to run tests on your existing email to make sure it is getting through?

zaph0d 16y ago
SPF + DomainKeys
- braindead_in 16y ago
  + ReverseDNS
- pinksoda 16y ago
  DKIM is better than DomainKeys.
imp 16y ago
Send it through AuthSMTP to avoid any EC2 related problems: http://www.authsmtp.com/ http://www.authsmtp.com/ (and set SPF correctly). It does cost money though. You can also send an email to this address and get a report on basic spam and deliverability issues: check-auth@verifier.port25.com
sajid 16y ago
Checkout these two guides from MailChimp: http://resources.mailchimp.com/tips/email-delivery-for-it-professionals http://resources.mailchimp.com/tips/email-delivery-for-it-pr... http://resources.mailchimp.com/getting-started/how-to-avoid-spam-filters http://resources.mailchimp.com/getting-started/how-to-avoid-...