Email Marketing & Avoiding Spam Filters

[brownoatmeal]

I couldn't find the best place for this post... Maybe this is a good start. For the email marketers out there or folks who re-market to names they have built via a list, I'm looking for some advice on making things Spam Proof.
Specifically in using the SpamAssasin filter which will provide differing codes to let you know what you need to change.
I've used this successfully and have rid my messages with anything indicitive of Spam with one exception.
There is a score entitled, "From address has no lower-case characters" which consistently pops up on my messages and claims it as a reason for Spam.

While this reason and the fix are seemingly completely obvious, I have had made this fix, but the message still pops up.

The first resource would be SpamAssasin and I have spent a great deal of time there to no avail... Hopeful that I can learn from an email marketer on how to fix this?
Thanks to all in advance.

[monkeythumpa]

If you only have one item that it is flagging then you will be fine. Most filters are triggered by a combination of flags. Usually you need to score over 3-5 points to get blocked, which is a combination of 3-5 triggers. You should be fine. Make sure your SPF is up to date and you address any SPAM challenge responses you get.

[stajer]

[brownoatmeal forwarded me the emails so I could examin them directly]

I got your emails and went through them. I don't see any problem with your headers. I am not very familiar with spam assassin but did some googling and I don't think your email should be tripping that filter. One thing to check - it looks like the SA tests have been updated several times - are you sure you are running v.3+?

I ran it through my own spam filtering system and it didn't pick up any scores. I don't think you will have any problems.

In fact, your html emails are a great example of how it is still possible to have attractive html emails without tripping spam filters.

I did see one issue - the <tbody> tag is commonly used by wysiwyg html programs and routinely appears in spam - you should try to eliminate it.

Sorry I can't be of more help.