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e6431a62f0
This avoids problems with ESPs that don't distinguish *Content-ID* from attachment filename, where a local hostname ending in ".com" could cause Gmail to block messages sent with inline attachments. (Mailgun, Mailjet, Mandrill and SparkPost have APIs affected by this.) Fixes #112.
32 lines
1.4 KiB
Python
32 lines
1.4 KiB
Python
from django.core.mail import EmailMultiAlternatives
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from django.test import SimpleTestCase
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from mock import patch
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from anymail.message import attach_inline_image
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from .utils import AnymailTestMixin, sample_image_content
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class InlineImageTests(AnymailTestMixin, SimpleTestCase):
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def setUp(self):
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self.message = EmailMultiAlternatives()
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super(InlineImageTests, self).setUp()
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@patch("email.utils.socket.getfqdn")
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def test_default_domain(self, mock_getfqdn):
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"""The default Content-ID domain should *not* use local hostname"""
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# (This avoids problems with ESPs that re-use Content-ID as attachment
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# filename: if the local hostname ends in ".com", you can end up with
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# an inline attachment filename that causes Gmail to reject the message.)
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mock_getfqdn.return_value = "server.example.com"
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cid = attach_inline_image(self.message, sample_image_content())
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self.assertRegex(cid, r"[\w.]+@inline",
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"Content-ID should be a valid Message-ID, "
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"but _not_ @server.example.com")
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def test_domain_override(self):
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cid = attach_inline_image(self.message, sample_image_content(),
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domain="example.org")
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self.assertRegex(cid, r"[\w.]+@example\.org",
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"Content-ID should be a valid Message-ID @example.org")
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