python3でメール送信

#!/bin/env python3

import smtplib
from email.mime.text import MIMEText
import datetime

jp='iso-2022-jp'

raw_msg = "hogehoge"
msg = MIMEText(raw_msg.encode(jp), 'plain', jp,)

fromaddr = "hoge"
toaddr = "hogehoge"

d = datetime.datetime.today()
date = d.strftime("%Y-%m-%d")

msg['Subject'] = date
msg['From'] = fromaddr
msg['To'] = toaddr

try:
	server = smtplib.SMTP("localhost")
	server.send_message(msg)
	print("successfully sent email")
except Exception:
	print("Error: unable to send email")

[vagrant@localhost python]$ python3 mail.py
successfully sent email

あれ、こない。vagrantだから？ ec2でやってみるか。

ec2からコマンドを打つ
[ec2-user@ip-***-**-**-** html]$ python3 mail.py
successfully sent email

なに、こない。