[mailgun] Got unknown Content-Type: multipart/alternative

  • CoPilot

    (@wordpressorgtimpeter)


    3 years, 3 months ago

    Hi guys,

    We use the Mailgun plugin, with “Use HTTP API” enabled, for sending our Woocommerce, Ultimate Members, and Mailpoet emails. This works great.

    However, occasionally I find in the debug.log the following error: [mailgun] Got unknown Content-Type: multipart/alternative

    I thought that Mailgun is compatible with multipart/alternative, isn’t it?
    All emails seem to be sent correctly, including the attachments when needed (invoice PDF).

    Cheers!

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