Chilkat2-Python
Outlook Send Email using MIME Format

This example sends an email using MIME format via the Microsoft Graph Outlook REST API.
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Chilkat2-Python
import sys
import chilkat2

success = False

# This example requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

http = chilkat2.Http()

# Use your previously obtained access token here:
# See the following examples for getting an access token:
#    Get Microsoft Graph OAuth2 Access Token (Azure AD v2.0 Endpoint).
#    Get Microsoft Graph OAuth2 Access Token (Azure AD Endpoint).
#    Refresh Access Token (Azure AD v2.0 Endpoint).
#    Refresh Access Token (Azure AD Endpoint).

jsonToken = chilkat2.JsonObject()
success = jsonToken.LoadFile("qa_data/tokens/microsoftGraph.json")
if (success == False):
    print(jsonToken.LastErrorText)
    sys.exit()

http.AuthToken = jsonToken.StringOf("access_token")

# To send email, we'll POST to the following endpoint:
# 
# POST /users/{id | userPrincipalName}/sendMail
# 
# (The special keyword "me" may be used in place of a principal name.)
# 

# The body of the POST request will contain the MIME source of the email in base64 format.

# Create a new email object
email = chilkat2.Email()
email.Subject = "Test Outlook API to Send HTML Email with Attachments"
email.From = "Mary <mary@somewhere.com>"
email.AddTo("Joe","joe@example.com")

# Add a plain-text alternative body, which will likely never be seen.
# (It is shown if the receiving email client is incapable of displaying HTML email.)
email.AddPlainTextAlternativeBody("This is a plain-text alternative body...")

# Our HTML will include an image, so add the related image here.
contentIdStarfish = email.AddRelatedFile("qa_data/jpg/starfish.jpg")
if (email.LastMethodSuccess == False):
    print(email.LastErrorText)
    sys.exit()

# The src attribute for the image tag is set to the contentIdStarfish:
sbHtml = chilkat2.StringBuilder()
sbHtml.Append("<html><body><p>This is an HTML email with an embedded image.</p>")
sbHtml.Append("<p><img src=\"cid:CONTENT_ID_STARFISH\" /></p></body></html>")
numReplacements = sbHtml.Replace("CONTENT_ID_STARFISH",contentIdStarfish)

email.AddHtmlAlternativeBody(sbHtml.GetAsString())

# Finally, add some attachments to the email.
# Add a file attachment.
success = email.AddFileAttachment2("qa_data/pdf/fishing.pdf","application/pdf")
if (success == False):
    print(email.LastErrorText)
    sys.exit()

# Add an attachment where the content is contained in a string.
content = "This is the content of the 2nd attached file."
email.AddStringAttachment("someText.txt",content)

# Get the email as multi-line base64..
bdMime = chilkat2.BinData()
email.GetMimeBd(bdMime)

# Now get it as multi-line base64
sbBase64 = chilkat2.StringBuilder()
bdMime.GetEncodedSb("base64_mime",sbBase64)

# Send the HTTP POST (i.e. send the email)
resp = chilkat2.HttpResponse()
success = http.HttpSb("POST","https://graph.microsoft.com/v1.0/me/sendMail",sbBase64,"utf-8","text/plain",resp)
if (success == False):
    print(http.LastErrorText)
    sys.exit()

# The send succeeded if the response status code = 202.
# In the success case, there is no response body.  (We just get the response code to know that it succeeded.)
if (resp.StatusCode != 202):
    json = chilkat2.JsonObject()
    json.Load(resp.BodyStr)
    json.EmitCompact = False
    print(json.Emit())
    print("Failed, response status code = " + str(resp.StatusCode))
else:
    print("Outlook Mail Sent.")