Content-Type: application/octet-stream for the csv files or Content-Disposition: attachment for the attachments

[radoslawoska]

Hi, thank you for the amazing repo!

Instead of Content-Type: text/csv is it possible to set Content-Type as application/octet-stream for the attached csv files?

thank you Radoslaw

[kootenpv]

Hey, thanks for posting. I'm not sure why you would want that :)? It would help understanding how it would fit in the code.

[radoslawoska]

Thank you Pascal for your prompt reply. Based on my understanding all csv files send via yagmail are detected as 'Content-Type: text/csv; name="some_filename.csv"' which is very nice feature because the content of the csv file is directly displayed inline in the body of the email.

But for my case I would like to display the attachments as the attachements. See the screenshot.

Thank you. Have a wonderful weekend! Radoslaw

[kootenpv]

Hi Radoslaw, just a guess... but are you mentioning the csv in contents or in attachments? In case you cannot get it to work with using attachments, it's most likely a bug. You too, enjoy the weekend :-)

[radoslawoska]

Hi Pascal, yes I'm using attachments. See the code and zipped csv.

smtp.send(to=myemail, subject='test1', attachments='/path/123_ARIADNA-10-2017.csv' ) 123_ARIADNA-10-2017.csv.zip

Thank you Radoslaw

[kootenpv]

Could you try to see if it works for you with yagmail-0.10.209?

pip uninstall yagmail && pip install --no-cache yagmail

[radoslawoska]

No luck.

print(yagmail.__version__) shows: 0.10.209 but I'm still getting the same results.

here are the raw content of the email:

--===============6190816825531352608==
Content-Type: multipart/alternative;
 boundary="===============3425160699749472352=="
MIME-Version: 1.0

--===============3425160699749472352==
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: base64


--===============3425160699749472352==
Content-Type: multipart/related;
 boundary="===============6154958952834555628=="
MIME-Version: 1.0

--===============6154958952834555628==
Content-Type: text/html; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: base64


--===============6154958952834555628==--
--===============3425160699749472352==--
--===============6190816825531352608==
Content-Type: text/csv; name="123_ARIADNA-10-2017.csv"
MIME-Version: 1.0
Content-Transfer-Encoding: base64

Um96cG9jesSZY2llIHJvem1vd3k7TnVtZXIgxbpyw7NkxYJvd3k7QWRyZXMgbnVtZXJ1IMW6csOz
ZMWCb3dlZ287TnVtZXIgZG9jZWxvd3k7Um9kemFqIHBvxYLEhWN6ZW5pYTtDemFzIHBvxYLEhWN6
ZW5pYTtLd290YSBuZXR0bw0KMjAxNy0xMS0xMSAxMToxMToxMTsxMTExMTExMTExMTvFgcOzZMW6
LCB1bC4gMTExMTExMTExMTEgMi82OzExMTExMTExMTExO2tvbcOzcmtvd2U7MDowMDozNjswLDEw
MDAwMA0K

--===============6190816825531352608==--

[kootenpv]

I think I misunderstood the question!

For me in gmail, the csv shows just fine (not inline, but as attachment). But you want application/octet-stream as type? Why? Isn't the type of a .csv file "text/csv"?

[radoslawoska]

Yes it works on gmail web client. The issue has something to do with the mac Mail App (desktop & ios) If you have macOS or iPhone when you will see that the csv attachments are displayed inline.

See the part of the raw source, email send via perl's MIME::Lite + Net:SMTP, which works:

Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="123_ARIADNA-10-2017.csv"
Content-Type: application/octet-stream

based on my research adding Content-Disposition: attachment with Content-Type: application/csv should work in the meantime a small amendment in sender.py did the trick ;)

if content_object['encoding'] != 'base64' or content_object['sub_type'] =='csv':
    content_object['main_type'] = 'application'
    content_object['sub_type'] = 'octet-stream'

[Gab0]

Had the same problem, still a bug at v0.10.212. @radoslawoska fix works. CSV attachments sent with yagmail can't be read properly on gmail client running on apple systems on current version. Its really important ^^. cheers!

[kootenpv]

I have missed this one, thanks for bringing it back to attention. Feel free to make a PR as you've already found the fix, I'd gladly accept it and put it on pypi!

[amrutadotorg]

thank you, PR created

[czarnota]

I am able to force application/octet-stream by patching mimetypes.guess_type

import mimetypes

def guess_type(*args, **kwargs):
    return (None, None)

mimetypes.guess_type = guess_type

This is a very ugly hack though...