Need filter for Postfix: MIME headers, multipart, etc

There are several sites out there that 'describe' mime_header_checks, but no actual examples on how to allow MIME headers, multipart messages, HTML embedded e-mails, etc.

So does anyone have a good example site, tutorial or even had problems like this in the past?
LVL 29
Michael WorshamStaff Infrastructure ArchitectAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

bevhostCommented:
MIME headers, multipart messages, HTML embedded e-mails are allowed by default already.

Can you explain what you actually need to know?
0
Michael WorshamStaff Infrastructure ArchitectAuthor Commented:
When a user tries to send an email out, multipart and text/html headers are getting 'lost' while regular text e-mails are getting through fine. Postfix server is configured to use SSL for incoming/client use and TLS for outgoing (which is a requirement as these e-mails have encrypted data embedded in them).
0
bevhostCommented:
Probably getting caught in someones spam filter.
Check the logs on each server it hops through.
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Michael WorshamStaff Infrastructure ArchitectAuthor Commented:
Determined that since there was no rDNS setting in the primary DNS, it was failing some SMTP sites reverse IP address lookups, thus being denied delivery.
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Email Servers

From novice to tech pro — start learning today.