# Action mailer 'Content-Type' found without required MIME hea

**URL:** <https://www.ruby-forum.com/t/action-mailer-content-type-found-without-required-mime-hea/57723>\
**Category:** Rails\
**Created:** [April 13, 2006, 1:01pm UTC](https://www.ruby-forum.com/t/action-mailer-content-type-found-without-required-mime-hea/57723 "2006-04-13T13:01:26Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Daan](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/b19c9b/32.png) [@Daan](https://www.ruby-forum.com/u/Daan)\
**Post date:** [April 13, 2006, 1:01pm UTC](https://www.ruby-forum.com/t/action-mailer-content-type-found-without-required-mime-hea/57723/1 "2006-04-13T13:01:26Z")

</div>

In my application i use the actionmailer.  
When i send a message to myself my spamfilter noticed the following  
error

MIME\_HEADER\_CTYPE\_ONLY ‘Content-Type’ found without required MIME  
headers  
AND  
MIME\_HTML\_NO\_CHARSET RAW: Message text in HTML without charset

Is there a way to fix this?

Thanks in advance