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I have recently launched a new website and now I'm having a problem with gmail blocking all email sent from my website. I'm not sending spam, just confirmation emails to the users who post on my website. The emails are specifically blocked because they have html and links (I know because I tried to send plain text emails and they were delivered successfully). Unfortunately, using plain text is not an option for the confirmation emails.

Any suggestions on how to avoid gmail spam filters that blindly block my emails?

Many Thanks

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marked as duplicate by Cristian Ciupitu, mdpc, Andrew B, EEAA, Jenny D May 12 '14 at 7:49

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

There's no perfect answer to this, but there are some things that can help improve your chances of not getting blocked. I'd start by ensuring you are using DKIM and SPF. If you're not already doing so, relaying via a reputable ISP or other payed smtp relay service (like authsmtp), will go a long way towards relieving the issue. You should also ensure any HTML you create in the mail is valid HTML.

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Thanks for your answer, but actually the email is delivered to gmail. It's only the confirmation emails that don't get delivered because they contain html and links. – WebGuy May 30 '11 at 13:16
I know you stated that text mails get delivered but HTML don't. But it's not a black and white result. Most spam-filtering uses a scoring system, and typically html mail scores higher than text. But having DKIM and SPF configured should also lower your score, thus increasing your chances allowing your mails through. – barryj May 30 '11 at 13:30
Thanks, I get your point. I use SPF, but not DKIM. But have to say that the email is delivered when I remove the links from the email. – WebGuy May 30 '11 at 13:41

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