Make the email encoding of Zend_Email configurable

[loekvangool]

Summary (*)

Make the email encoding configurable.

Examples (*)

I use the email infrastructure to send custom emails from PHP scripts. I need UTF-8 encoding, but Magento uses iso-8859-1 (the default of Zend_Email). Of course, one can fix things with utf8_decode() but it's better to just keep things in a single encoding. There does not seem to be a setting for this yet.

From the sent email:

Content-Type: text/plain; charset=iso-8859-1

It happens here: https://github.com/OpenMage/magento-lts/blob/1.9.4.x/app/code/core/Mage/Core/Model/Email.php#L135

Proposed solution

There could be a configuration setting for the encoding, and use iso-8859-1 as a fallback or default.

Also discussed in https://stackoverflow.com/questions/36570050/magento-email-model-encoding-unfortunately-defaults-to-iso-8859-1

[fballiano]

I'm closing this one, since now we use zend_mail with utf8 charset