python how to send mail with TO CC and BCC

Question

I need for testing purposes to populate few hundred email boxes with various messages  and was going to use smtplib for that  But among other things I need to be able to send messages not only TO specific mailboxes  but CC and BCC them as well  It does not look like  smtplib  supports CC-ing and BCC-ing while sending emails   Looking for suggestions how to do CC or BCC sending messages from the python script    And     no  I m not creating a script to spam anyone outside of my testing environment

User · Accepted Answer

Email headers don t matter to the smtp server  Just add the CC and BCC recipients to the toaddrs when you send your email  For CC  add them to the CC header   toaddr    buffy sunnydale k12 ca us  cc     alexander sunydale k12 ca us   willow sunnydale k12 ca us   bcc     chairman slayerscouncil uk   fromaddr    giles sunnydale k12 ca us  message subject    disturbance in sector 7  message text    Three are dead in an attack in the sewers below sector 7   message    From   s r n    fromaddr            To   s r n    toaddr            CC   s r n        join cc             Subject   s r n    message subject             r n             message text toaddrs    toaddr    cc   bcc server   smtplib SMTP  smtp sunnydale k12 ca us   server set debuglevel 1  server sendmail fromaddr  toaddrs  message  server quit

User · Answer

None of the above things worked for me as I had multiple recipients both in  to  and  cc   So I tried like below   recipients     abc gmail com    xyz gmail com   cc recipients     lmn gmail com    pqr gmail com   MESSAGE  To          join recipients  MESSAGE  Cc          join cc recipients    and extend the  recipients  with  cc recipients  and send mail in trivial way  recipients extend cc recipients  server sendmail FROM recipients MESSAGE as string

User · Answer

The distinction between TO  CC and BCC occurs only in the text headers   At the SMTP level  everybody is a recipient     TO - There is a TO  header with this recipient s address  CC - There is a CC  header with this recipient s address  BCC - This recipient isn t mentioned in the headers at all  but is still a recipient   If you have   TO  abc company com CC  xyz company com BCC  boss company com   You have three recipients   The headers in the email body will include only the TO  and CC

User · Answer

It did not worked for me until i created    created cc string cc     someone domain com   added cc to header msg  Cc     cc   and than added cc in recipient  list  like   s sendmail me   you cc   msg as string

User · Answer

Don t add the bcc header   See this  http   mail python org pipermail email-sig 2004-September 000151 html  And this     Notice that the second argument to sendmail    the recipients  is passed as a list  You can include any number of addresses in the list to have the message delivered to each of them in turn  Since the envelope information is separate from the message headers  you can even BCC someone by including them in the method argument but not in the message header     from http   pymotw com 2 smtplib  toaddr    buffy sunnydale k12 ca us  cc     alexander sunydale k12 ca us   willow sunnydale k12 ca us   bcc     chairman slayerscouncil uk   fromaddr    giles sunnydale k12 ca us  message subject    disturbance in sector 7  message text    Three are dead in an attack in the sewers below sector 7   message    From   s r n    fromaddr        To   s r n    toaddr        CC   s r n        join cc        don t add this  otherwise  to and cc  receivers will know who are the bcc receivers          BCC   s r n        join bcc         Subject   s r n    message subject         r n         message text toaddrs    toaddr    cc   bcc server   smtplib SMTP  smtp sunnydale k12 ca us   server set debuglevel 1  server sendmail fromaddr  toaddrs  message  server quit

User · Answer

As of Python 3 2  released Nov 2011  the smtplib has a new function send message instead of just sendmail  which makes dealing with To CC BCC easier  Pulling from the Python official email examples  with some slight modifications  we get     Import smtplib for the actual sending function import smtplib    Import the email modules we ll need from email message import EmailMessage    Open the plain text file whose name is in textfile for reading  with open textfile  as fp        Create a text plain message     msg   EmailMessage       msg set content fp read       me    the sender s email address   you    the recipient s email address   them    the cc s email address   they    the bcc s email address msg  Subject      The contents of  s    textfile msg  From     me msg  To     you msg  Cc     them msg  Bcc     they     Send the message via our own SMTP server  s   smtplib SMTP  localhost   s send message msg  s quit     Using the headers work fine  because send message respects BCC as outlined in the documentation      send message does not transmit any Bcc or Resent-Bcc headers that may appear in msg     With sendmail it was common to add the CC headers to the message  doing something such as    msg  Bcc     blind email adrress com   Or   msg    From  from email address com           To  to email adress com           BCC  hidden email address com           Subject  You ve got mail            This is the message body    The problem is  the sendmail function treats all those headers the same  meaning they ll get sent  visibly  to all To  and BCC  users  defeating the purposes of BCC  The solution  as shown in many of the other answers here  was to not include BCC in the headers  and instead only in the list of emails passed to sendmail    The caveat is that send message requires a Message object  meaning you ll need to import a class from email message instead of merely passing strings into sendmail

User · Answer

You can try MIMEText  msg   MIMEText  text   msg  to      msg  cc        then send msg as string    https   docs python org 3 6 library email examples html

User · Answer

Key thing is to add the recipients as a list of email ids in your sendmail call   import smtplib from email mime multipart import MIMEMultipart  me    user63503 gmail com  to    someone gmail com  cc    anotherperson gmail com someone yahoo com  bcc    bccperson1 gmail com bccperson2 yahoo com   rcpt   cc split        bcc split         to  msg   MIMEMultipart  alternative   msg  Subject      my subject  msg  To     to msg  Cc     cc msg attach my msg body  server   smtplib SMTP  localhost     or your smtp server server sendmail me  rcpt  msg as string    server quit

[python] python: how to send mail with TO, CC and BCC?

Examples related to python

Examples related to email

Examples related to testing