Email contains duplicate header and footer when it is resent or sent via queue

Maybe it’s possible to check if Content-Type is text/html.

add_filter( 'haet_mail_use_template', function ( $use_template, $mail ){
// find the Content-Type "text/html" in headers
if( $mail['headers'] ... )
return false;
// otherwise do not change
return $use_template; } , 10, 2 );

hey @wallifantastic

checking the content type will not work. Many emails are already HTML although they do not look formatted.

I currently think about checking the content of the mail for specific classes and only apply the template if the class is not already present.

you can try with the filter you mentioned above if you need a fast solution. Otherwise it seems like a good idea to add this feature to the plugin within the next days.

best regards Hannes

Hey Hannes, thank you for your quick reply. In principle, we need to identify those emails whose content has already been provided using the WP HTML Mail Template. I just saw, that we can create our own template file. In this file we could add a class=”my-template” to the body tag. Then we could do something like this:

add_filter( 'haet_mail_use_template', function ( $use_template, $mail ){
if( $mail['message'] ...CONTAINS BODY CLASS "my-template"... )
return false;
return $use_template;
} , 10, 2 );

Unfortunately I’m not a programmer. Could you help us with that code?

Dear Hannes, do you think, we’re on the right track with this approach? Thank you so much for your support!!!

Hello @wallifantastic,

please try this code:

add_filter( 'haet_mail_use_template', 'customize_template_usage', 10, 2 ); function customize_template_usage( $use_template, $mail ){ if( strpos($mail['message'], 'CONTAINS BODY CLASS') ){ return false; } return true; }

Best regards
Julian

• This reply was modified 1 year, 3 months ago by Julian.

Hi Julian, thank you so much!!! That did the trick. Now we can resend the mails and queue them, without wrapping them into the email template a second time. This is probably interesting for other users as well. So maybe it’s worth to write a small faq on your documentation page. Kind regards, and thank you again!!!

Hello @wallifantastic,

you are most welcome. I am happy it’s working now.
Please let us know if you need anything else.

Best regards
Julian