gmail - Send mail from alias mail ID using python smtplib

Question

I have a python script where I send mails to a list of mail IDs. I'm now trying to send mails from an alias mail ID. I have already created the alias mail in the GSuite. I have the following code as of now:

user = 'loginmail@example.com'  # Email userID
password = 'password'  # Email password
from_addr = 'alias@example.com'
from_name = 'User Name'    
recipients_addr = 'recipient@example.com'
subject = 'This is subject'
body = "this is mail body"
file_path = [file1,file2] 
   
send_email(user, password, from_addr,from_name, recipients_addr, subject, body, file_path)

The send_email() function:

def send_email(user, password, from_addr,from_name, recipients_addr, cc_addr, subject, body, files_path=None,
               server='smtp.gmail.com'):
    #   assert isinstance(recipents_addr, list)
    FROM = from_addr
    FROMNAME = from_name
    TO = recipients_addr if isinstance(recipients_addr, list) else recipients_addr.split(' ')
    CC = cc_addr if isinstance(cc_addr, list) else cc_addr.aplit(' ')
    PASS = password
    SERVER = server
    SUBJECT = subject
    BODY = body
    msg = mime_init(FROM,FROMNAME, TO, CC, SUBJECT, BODY)

    for file_path in files_path or []:
        with open(file_path, "rb") as fp:
            part = MIMEBase('application', "octet-stream")
            part.set_payload((fp).read())
            # Encoding payload is necessary if encoded (compressed) file has to be attached.
            encoders.encode_base64(part)
            part.add_header('Content-Disposition', "attachment; filename= %s" % os.path.basename(file_path))
            msg.attach(part)

    if SERVER == 'localhost':  # send mail from local server
        # Start local SMTP server
        server = smtplib.SMTP(SERVER)
        text = msg.as_string()
        server.send_message(msg)
    else:
        # Start SMTP server at port 587
        server = smtplib.SMTP(SERVER, 587)
        server.starttls()
        # Enter login credentials for the email you want to sent mail from
        server.login(user, PASS)
        text = msg.as_string()
        # Send mail
        server.sendmail(FROM, TO, text)

    server.quit()
    print('Mail Sent!')

The mime_init() function:

def mime_init(from_addr,from_name, recipients_addr, cc_addr, subject, body):
    msg = MIMEMultipart()

    msg['From'] = formataddr((from_name, from_addr))
    msg['To'] = ','.join(recipients_addr)
    msg['CC'] = ','.join(cc_addr)
    msg['Subject'] = subject
    msg.attach(MIMEText(body, 'plain'))
    return msg

I even tried to pass the alias mail as both email-userid and from address, but it's not working.

I am trying to send the mail from an alias mail ID. can anyone help me on this?

question from:https://stackoverflow.com/questions/66061531/send-mail-from-alias-mail-id-using-python-smtplib

Answer 1

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