required missing property when trying to attach image inline

[ajwillo]

when attempting to send a message with an inline image, the below error occurs. when I remove the code for the image/attachment the mail sends

    account = Account((credentials[0]['username'], credentials[0]['password']))
    mailbox = account.mailbox()
    message = mailbox.new_message()
    message.attachments.add('https://www.image.com/email_banner.png')
    att = message.attachments[0]  # get the attachment object
    att.is_inline = True
    att.content_id = 'banner.png'
    body += '<p><img src="cid:banner.png"></p>'
    message.subject = 'Hello Test'
    message.to.add(['user@user.com']) 
    message.body = body
    message.send()

error

Client Error: 400 Client Error: Bad Request for url: https://graph.microsoft.com/v1.0/me/sendMail | Error Message: Required property is missing.
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python3.6/site-packages/O365/message.py", line 602, in send
    response = self.con.post(url, data=data)
  File "/usr/local/lib/python3.6/site-packages/O365/connection.py", line 684, in post
    return self.oauth_request(url, 'post', data=data, **kwargs)
  File "/usr/local/lib/python3.6/site-packages/O365/connection.py", line 662, in oauth_request
    return self._internal_request(self.session, url, method, **kwargs)
  File "/usr/local/lib/python3.6/site-packages/O365/connection.py", line 627, in _internal_request
    raise HTTPError('{} | Error Message: {}'.format(e.args[0], error_message), response=response) from None
requests.exceptions.HTTPError: 400 Client Error: Bad Request for url: https://graph.microsoft.com/v1.0/me/sendMail | Error Message: Required property is missing.    

[alejcas]

The attachment must be an image, not a url.

[alejcas]

Can we close this?

[ajwillo]

I've used pillow to load the image but am still unable to attach

>>>img = Image.open(BytesIO(image_url.content))
>>>message.attachments.add(img)
ValueError: Attachments must be a str or Path or a list, tuple or set of the former

also tried this with the same error

    stream = BytesIO()
    img.save(stream, format="png")
    stream.seek(0)
    image_object = stream.read()
    message.attachments.add(image_object)

[alejcas]

For the moment you can’t attach in memory objects. Save the file to disk and then upload and delete the file after.

I’ll try to add this.

[alejcas]

This will be released under version 2.0.

You can now use inmemory objects:

response = requests.get('https://www.image.com/email_banner.png')
image = BytesIO(response.content) # In memory

# ...
msg = account.new_message()
msg.attachments.add([(image, 'my_file_image.png')])  # pass a list of tuples: (BytesIO instance, file_name)
att = msg.attachments[0]  # get the attachment object
att.is_inline = True
att.content_id = 'banner.png'
body = '<p><img src="cid:banner.png"></p>'
msg.subject = 'Hello Test'
msg.to.add(['user@user.com']) 
msg.body = body
msg.send()