Since I don’t have a Notes client anymore, I needed a different approach to export some mails from a Domino server.

I couldn’t find anything simple enough that I could use (without having access to either the Domino server or a Notes client), soI built a quick and dirty script to get all the mails I wanted out of that server.

It exploits the “Show Mime Full” action, available in iNotes.

Image:Show full mime header

I used a very quick and dirty approach, that includes copying cookies from a browser session into a Python script.

The script loops through the documents based on their Notes Unique ID, and then does a couple of simple changes to the output of the l_MailMessageHeader Form (notably, remove the <br> and then un-escape the html), before writing to disk.

url = f"{mailfile}/($All)/{unid}/?OpenDocument&Form=l_MailMessageHeader&PresetFields=FullMessage;1"
response = requests.request("GET", url, cookies=cookies, headers=headers, data=payload, allow_redirects=False)
_mail = response.text.replace("<br>","")
_mail = html.unescape(_mail)

I give the resulting files the .eml extension, although they’re not strictly eml files.

WARNING : I don’t know the performance impact of the Show Full Mime action on the Domino server, so use caution !

Anyway, these files can be put directly into the data directory structure of Evolution (a Linux mail client). On my Fedora 35 Linux client, that data structure is here:



Basically you just clone the repo and start

git clone
cd inotes-export

Install the python prerequisites (you need Python and pip installed):

pip install -r requirements.txt

Verify it starts:

./ -h

You need to get the path to your mailfile, which looks like this:<yourname>.nsf

You need to get the request cookies (for instance, using Developer Tools (use the F12 in any modern browser)), from a logged in session. Using the cookies this way, may or may not work depending on your setup.

You can use the Python script as an example , to include fancier authentication flows.

Copy the complete value of the Cookies request header.

To export a folder (instead of the default Inbox):

./ --mailfile=<path to your mailfile onDomino> --cookie='<the cookie value you copied>' --out-dir="/tmp/export" --mailfolder=TEST

You can also export nested folders, using backslash:

./ --mailfile=<path to your mailfile onDomino> --cookie='<the cookie value you copied>' --out-dir="/tmp/export" --mailfolder="Rootfolder\Subfolder"

The resulting “.eml” files can be read directly in Linux mail clients (at least in Evolution).

As long as you use the same out-dir folder, already downloaded mails will not be downloaded again.