- Don’t overdo it with HTML. Keep it nice but with content.
- Some ISPs block emails based on how many they receive from an address in a period of time, but that’s just part of the game.
- http://www.returnpath.com/ is pretty good.
- Send the e-mails from different addresses to different batches of your users.
- LinkedIn emails get in because they have properly configured e-mail via SPF and DKIM, they are double opt-in, and they somehow work with google and microsoft. (Without double opt-in you get marked as spam more often. – I have no idea whether you already do this.)
- Having malformed message-Ids where the domain in the message-ID does not match the sending domain.
- Use this: http://designinstruct.co
- Have an easy unsubscribe button.
- Avoid link shorteners
- Use litmus to test against spam filters
- Use mail-tester.com
- Compress your images. (kraken.io)
- Ask a subscriber to add the email-list address to their address book (right on the subscribe form) and briefly explain why.
- Enable a double opt-in subscription process, and send a plain-text confirmation which includes a request to add the email-list address to a recipient’s address book. And, again, briefly explain why.
- Useful tool: http://adaptive-images.c
- Use this http://spamcheck.postmark
<h1> My long bet on a micro-cap $PCYG.</h1> This company reminds me of Epic Software systems – a prominent private multi-billion dollar juggernaut that empowers