Q:

HTML email does not show up in Mailcatcher, but text does

Where can I look for logs that might help me find the cause of this? I have a Django app configured to deliver non-production environments email to a server running Mailcatcher. When I send text only email, it shows up in Mailcatcher, when I add the alternative HTML content, they do not.
I'm using EmailMultiAlternatives and to test this I am commenting out my line with attach_alternative() to send the text only, it is working fine. No errors from runserver, and email.send() is returning 1.
Fails:
@staticmethod
def send_payment_confirmation(client, free_trial_days, recur_id):
    context = {
        'recur_id': recur_id,
        'client': client,
        'free_trial_days': free_trial_days
    }
    html_body = render_to_string('email/html/payment_confirmation.html', context)
    text_body = render_to_string('email/text/payment_confirmation.txt', context)

    email = EmailMultiAlternatives(subject=u"Thank You For Your Payment,{}".format(client.name),
                                   body=text_body, to=[client.get_contact_email()], bcc=['support@example.com'])
    email.attach_alternative(html_body, "text/html")
    email.send()

Works:
@staticmethod
def send_payment_confirmation(client, free_trial_days, recur_id):
    context = {
        'recur_id': recur_id,
        'client': client,
        'free_trial_days': free_trial_days
    }
    html_body = render_to_string('email/html/payment_confirmation.html', context)
    text_body = render_to_string('email/text/payment_confirmation.txt', context)

    email = EmailMultiAlternatives(subject=u"Thank You For Your Payment,{}".format(client.name),
                                   body=text_body, to=[client.get_contact_email()], bcc=['support@example.com'])
    # email.attach_alternative(html_body, "text/html")
    email.send()

A:

Figured this out, it's a known bug with MailCatcher. Versions after 0.5.12 crash when they are sent utf8 html email. Current version is 0.6.4 - 2/4/16 (and still has the issue).
Downgrading to 0.5.12 resolves the problem.
https://github.com/sj26/mailcatcher/issues/201

