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html emails

Posted: Tue Jun 06, 2006 2:23 pm
by howardr
How much more likely are html emails to be spam blocked than text emails?

I used to write html newsletters at my old for the company i used to work for, but we used a 3rd party mailing service to actual send it out to the 130,000 recipients. At my new job we are send an email to the user every time they make a bid on a product. It is a simple text email. We want to send an HTML email now that will give other information such as other bids they currently have open and stuff. Does anybody know if this email is a lot more liekly to be spam blocked.? and does anybody know any good practices for sending HTML emails?

Also, we will be sending the email from our servers. We will be hosting out own images. We belong to a couple email white lists. We are a pretty big site (uship.com)

thanks,
Howard

Posted: Tue Jun 06, 2006 3:10 pm
by Chris Corbyn
It depends. SpamAssassin issues ~0.3 points for HTML content. It issues many more if that's the ONLY content.

Use a Multipart/alternative MIME type and you should be good. Correctly formed email headers make a difference with spam blockers too.

EDIT | Depending upon the size of them you may want to embed the images rather than remotely link to them.