AWS SES Send Email to Multiple Recipient using Python

Question

I am new to AWS Lambda function.

I wanted to send email to multiple recipients. I am able to send email to single email address but not multiple email ids and shows error.

I just refered the amazon documentation page and wrote the below code.

I am using environmental variable runteam and it has values like ['[email protected]','[email protected]','[email protected]']

import boto3
import os
import os, sys, subprocess
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from email.mime.application import MIMEApplication

def lambda_handler(event,context):

    ses = boto3.client("ses")
    s3 = boto3.client("s3")
    runemail = os.environ['runteam']
    for i in event["Records"]:
        action = i["eventName"]
        #ip = i["requestParameters"]["soruceIPAddress"]
        bucket_name = i["s3"]["bucket"]["name"]
        object = i["s3"]["object"]["key"]

    fileObj = s3.get_object(Bucket = bucket_name, Key = object)
    file_content = fileObj["Body"].read()

    sender = "[email protected]"
    to = runemail
    subject = str(action) + 'Event from ' + bucket_name 

    body = """
        <br>
        This email is to notify regarding {} event
        This object {} is created
    """.format(action,object)

    msg = MIMEMultipart('alternative')

    msg["Subject"] = subject
    msg["From"] = sender
    msg["To"] = ', '.join(runemail)

    body_txt = MIMEText(body, "html")
    attachment = MIMEApplication(file_content)
    attachment.add_header("Content-Disposition","attachment", filename = "ErrorLog.txt")
    msg.attach(body_txt)
    msg.attach(attachment)
    response = ses.send_raw_email(Source = sender, Destinations = rumemail, RawMessage = {"Data": msg.as_string()})
    return "Thanks"

What is the error you receive? How are you passing the list of addresses? The runemail = os.environ['runteam'] line suggests it should be coming in via an Environment Variable which is a string, yet the line msg["To"] = ', '.join(runemail) suggests it should be coming in a List. Something doesn't match there. — John Rotenstein
– John Rotenstein, Commented Jun 24, 2019 at 5:39
Yes runteam has value like ['[email protected]','[email protected]','[email protected]'] Error: [ERROR] ClientError: An error occurred (InvalidParameterValue) when calling the SendRawEmail operation: Illegal address — Karthik
– Karthik, Commented Jun 24, 2019 at 5:49
Yes, but that is Python code, which is defining a list. However, the environment variable is a single string, not a List of strings. — John Rotenstein
– John Rotenstein, Commented Jun 24, 2019 at 6:14
By the way, something looks strange with your for loop (or with the indentation of the code). It is looping through each Record, and extracting the bucket and object name, but then not doing anything with them. Thus, it will only extract the value of the last Record. — John Rotenstein
– John Rotenstein, Commented Jun 24, 2019 at 6:16

Anil Koppula · Accepted Answer · 2020-10-02 12:52:55Z

3

I think everything seems to be right regarding the email sending code. The error lies in your program where the way you store your environ variable.

It should be stored as runteam="[email protected] [email protected] [email protected]" (notice the space between each email)

Then use this variable as
rumemail = os.environ['runteam'].split()

msg["To"] = ', '.join(runemail)

response = ses.send_raw_email(Source = sender, Destinations = rumemail, RawMessage = {"Data": msg.as_string()})

edited Oct 2, 2020 at 12:52

answered Oct 2, 2020 at 12:07

Anil Koppula

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John Rotenstein · Accepted Answer · 2019-06-24 06:14:15Z

2

This line:

msg["To"] = ', '.join(runemail)

is expecting a Python list, not a string. I suggest you add a debug line after it to see what you are actually sending the system.

I would recommending passing your environment variable as:

[email protected], [email protected], [email protected]

Then, use:

msg["To"] = runemail

answered Jun 24, 2019 at 6:14

John Rotenstein

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Notonb · Accepted Answer · 2020-05-23 23:05:31Z

0

Removing/commenting out the following line should fix the issue:

msg["To"] = ', '.join(runemail)

By the above line, you are converting a list to a string. However, Destinations attribute is looking for a list.

answered May 23, 2020 at 23:05

Notonb

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