raspberry pi - send email on startup (will need gmail account to send from)

startup_mailer.py

import subprocess
import smtplib
import socket
from email.mime.text import MIMEText
import datetime
# Change to your own account information
to = '[email protected]'
gmail_user = '[email protected]'
gmail_password = 'yourpassword'
smtpserver = smtplib.SMTP('smtp.gmail.com', 587)
smtpserver.ehlo()
smtpserver.starttls()
smtpserver.ehlo
smtpserver.login(gmail_user, gmail_password)
today = datetime.date.today()
# Very Linux Specific
arg='ip route list'
p=subprocess.Popen(arg,shell=True,stdout=subprocess.PIPE)
data = p.communicate()
split_data = data[0].split()
ipaddr = split_data[split_data.index('src')+1]
my_ip = 'Your ip is %s' %  ipaddr
msg = MIMEText(my_ip)
msg['Subject'] = 'IP For RaspberryPi on %s' % today.strftime('%b %d %Y')
msg['From'] = gmail_user
msg['To'] = to
smtpserver.sendmail(gmail_user, [to], msg.as_string())
smtpserver.quit()

This is awesome, might use it for something, can't think of a use yet.

or via a cronjob

crontab -e

then

@reboot python /home/pi/code/startup_mailer.py

looking at it the cron job is more reliable, placing it in the rc.local file fails on wifi

Thanks for the code you posted. On Raspberry Pi 3, Model B, I had to slightly change your startup_mailer.py script when I invoke it using Cron at booting time:

tries = 0
while True:
    if (tries > 60):
        exit()
    try:
        smtpserver = smtplib.SMTP('smtp.gmail.com', 587, timeout=30) # Server to use.
        break
    except Exception as e:
        tries = tries + 1
        time.sleep(1)

anassar's workaround worked for me. Then I realized I was calling the script from cron @reboot - without allowing for additional tries, apparently everything the python script needed had not loaded when the script ran and the script failed.
Another solution that works (and if leave anassar's code in the script and print out tries, it ALWAYS only needs 1 try) is to delay the running of the script. Can do in the cron command:
@reboot sleep 300 && python /path/to/python_script.py

Hey There. Thanks for this. Will make remote monitoring of my Pi much easier. Having an issue though.
Gmail refused the sign-in attempt. Sent me an email saying an app without modern security protocols is accessing my account.
Anyone experienced this or found a workaround?

Hey @bereshr1! Is there any chance you are using two step verification on your gmail account? That could be the issue.

@bereshr1, I just had this issue and needed to allow less secure devices to access gmail. You can look here for that setting: here

found the solution and modified johnantoni's script. just tested and worked !

Hello! Sorry if i bring up this old thread but i get this error:

Traceback (most recent call last):
  File "/home/pi/code/startup_mailer.py", line 21, in <module>
    ipaddr = split_data[split_data.index('src')+1]
ValueError: 'src' is not in list

Any idea of how to fix it?

The 'src' is not in list is caused by python3. Try python2 instead.