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I can't include a header and body as this wrecks it in hotmail, but if I don't include one, then it is wrecked in webmail.
Does anyone know of a set of rules to follow when building html mail?
Please no "just send text mail" as its not an option.
Still, be prepared to test in a large number of email clients, both desktop and web based. And even beyond that, know that sending HTML mail exclusively will sacrifice many potential recipients. That's just the way the ground lies today.
I recently saw one survey over a relatively small sample of users - I would imagine that Hotmail is often higher thatn these results show. But at least it gives some sense of the breadth of email clients that are currently in use, and each one has its own quirkiness. This is much more challenging than cross-browser testing of a web page.
Mail Client SurveyOutlook - 29%
Outlook Express - 18%
AOL - 10%
Eudora - 10%
Lotus - 7%
Netscape - 5.5%
Yahoo Mail - 4%
Hotmail - 2.5%
--
Other - 14%'Other' included:
FirstClass, MS Entourage, Mozilla, Mac OS X Mail,
The Bat!, Open Text, Pegagus, Incredimail, Goldmine,
Juno, Novell GroupWise and Mulberry.
If someone has given you their work address, their company server's spam filter may well be configured to reject ALL html email, or any mail with images attached. You may have better luck with a "multi-part mime" message which sends both HTML and plain text, so that those who cannot receive HTML email still get something.
I realize you said "just send text mail" is not an option. I've been working with email marketing for quite some time, and I honestly feel it's the only viable option in most cases. Where I've been able to convince clients to give it a test, the response rates prove that plain text works better. If a more elaborate message is desired, we just put it on the web and send an invitation to click through.
One of the big issues is the degree of spam filtering that goes on at all levels today. And you usually don't get a bounce message that says "your recent message tested positive as spam and so it was not delivered." Instead, your email just goes to the big bit bucket in the sky.
I don't know about how msn treats links though, happily I don't have to do much of that stuff anymore :)