it depends on the criteria that their spam filter is using. Quite often, it will put in extra headers in the email as to whty it's being tagged - a sort of scoring mechanism whereby if it reaches a certain limit, it's marked as possible spam, and if it hets any higher than the next limit, it's automatically deleted.
What you need to do is get to have a look at these headers if they are there for an indication as to why it's being scored as such. Then either make alterations to accomodate these - or just resign yourself to the fact that your customer has a very strict scoring proceedure.
Such headers could look like:
Code:
X-Virus-Scanned: by Barracuda Spam Firewall at xxxxxxx.com
X-Barracuda-Spam-Score: 3.00
X-Barracuda-Spam-Status: No, SCORE=3.00
using global scores of TAG_LEVEL=3.5 QUARANTINE_LEVEL=6.0 KILL_LEVEL=8.5 tests=BLANK_LINES_70_80, INVALID_DATE
X-Barracuda-Spam-Report: Code version 3.02, rules version 3.0.9578
Rule breakdown below pts rule name description
---- ---------------------- --------------------------------------------------
1.76 INVALID_DATE Invalid Date: header (not RFC 2822)
1.24 BLANK_LINES_70_80 BODY: Message body has 70-80% blank lines
To get them from outlook, open the email, select 'View' | 'Options' and copy and paste the 'internet headers' back to you.
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