Details about the Python mail sending example and the python mail sending example

Details about the Python mail sending example and the python mail sending example

Python needs two modules: smtplib and email. It is also because we can import these modules in our actual work that it makes processing tasks easier. Today, let's take a good look at sending emails using Python.

SMTP is the mail sending protocol. Python provides built-in support for SMTP, which can send plain text emails, HTML emails, and emails with attachments.

Python supports two SMTP modules: smtplib and email. email is responsible for constructing emails, while smtplib is responsible for sending emails.

1. The mail body is in text format.

#-*-Coding: UTF-8-*-from email. mime. multipart import MIMEMultipartfrom email. mime. text import MIMETextimport smtplibimport sysimport csvimport xlrdfrom pyExcelerator import * import osimport xlwtfrom xlutils. copy import copyimport pyExceleratorimport datetimeimport timereload (sys) sys. setdefaultencoding ("UTF-8 ") mailto_list = [""] # mail recipient's email address mail_host = "smtp.exmail.qq.com" # mail_user = "" # mail sender's email account mail_pass = "" # mail sender's email Password def send_mail (to_list, sub, content): me = "genius idiot dream" + "<" + mail_user + ">" msg = MIMEText (content, _ subtype = 'plain ', _ charset = 'utf-8') msg ['subobject'] = sub # mail Subject msg ['from'] = me msg ['to'] = ";". join (to_list) try: server = smtplib. SMTP () server. connect (mail_host) server. login (mail_user, mail_pass) server. sendmail (me, to_list, msg. as_string () server. close () return True except t Exception, e: print str (e) return Falseif _ name _ = '_ main __': sub = "genius idiot dream" content = '... 'If send_mail (mailto_list, sub, content): print "sent successfully" else: print "failed to send"

2. The mail body is in the form of a table:Because it is a table, we select HTML to implement the table function. The content displayed on the email is HTML.

#-*-Coding: UTF-8-*-from email. mime. multipart import MIMEMultipartfrom email. mime. text import MIMETextimport smtplibimport sysimport csvimport xlrdfrom pyExcelerator import * import osimport xlwtfrom xlutils. copy import copyimport pyExceleratorimport datetimeimport timereload (sys) sys. setdefaultencoding ("UTF-8 ") mailto_list = [""] # mail recipient's email address mail_host = "smtp.exmail.qq.com" # mail_user = "" # mail sender's email account mail_pass = "" # mail sender's email Password def send_mail (to_list, sub, content): me = "genius idiot dream" + "<" + mail_user + ">" # unlike the above Code, here we select the html format msg = MIMEText (content, _ subtype = 'html', _ charset = 'utf-8 ') msg ['subobject'] = sub # Subject msg ['from'] = me msg ['to'] = ";". join (to_list) try: server = smtplib. SMTP () server. connect (mail_host) server. login (mail_user, mail_pass) server. sendmail (me, to_list, msg. as_string () server. close () return True except t Exception, e: print str (e) return Falseif _ name _ = '_ main __': sub = "genius idiot dream" html = '
3. the email body is in the image format:To embed an image into the body of the email, we only need to add the email as an attachment by sending the attachment, and then reference src = "cid: 0 "to embed the attachment as an image. If there are multiple images, numbers them in sequence, and then reference different CIDS: x.

Def send_mail (to_list, sub, content): me = "genius idiot dream" + "<" + mail_user + ">" msg = MIMEMultipart () msg ['subobject'] = sub # Subject msg ['from'] = me msg ['to'] = ";". join (to_list) txt = MIMEText ("genius idiot dream", _ subtype = 'plain ', _ charset = 'utf8') msg. attach (txt) # <B>: <I>: italic msgText = MIMEText ('<B> Some <I> HTML </I> text </B> and an image.  good! ', 'Html', 'utf-8') msg. attach (msgText) file1 = "F: \ 1.jpg" image = MIMEImage (open (file1, 'rb '). read () image. add_header ('content-id', '<image1>') msg. attach (image) try: server = smtplib. SMTP () server. connect (mail_host) server. login (mail_user, mail_pass) server. sendmail (me, to_list, msg. as_string () server. close () return True except t Exception, e: print str (e) return Falseif _ name _ = '_ main __': sub = "genius idiot dream" html = '
4. Send email attachments: the email attachments are images.

Def send_mail (to_list, sub, content): me = "genius idiot dream" + "<" + mail_user + ">" msg = MIMEMultipart () msg ['subobject'] = sub # Subject msg ['from'] = me msg ['to'] = ";". join (to_list) txt = MIMEText ("genius idiot dream", _ subtype = 'plain ', _ charset = 'utf8') msg. attach (txt) # <B>: <I>: italic # msgText = MIMEText ('<B> Some <I> HTML </I> text </B> and an image.  good! ', 'Html', 'utf-8') # msg. attach (msgText) # file1 = "F: \ 1.jpg" # image = MIMEImage (open (file1, 'rb '). read () # image. add_header ('content-id', '<image1>') # msg. attach (image) att = MIMEText (open ('f: \ 1.jpg ', 'rb '). read (), 'base64', 'utf-8 ') att ["Content-Type"] = 'application/octet-stream' att ["Content-Disposition"] = 'attachment; filename = "1.jpg" 'msg. attach (att) try: server = smtplib. SMTP () server. connect (mail_host) server. login (mail_user, mail_pass) server. sendmail (me, to_list, msg. as_string () server. close () return True expect t Exception, e: print str (e) return False
5. Send group Emails: send emails to multiple users at the same time.
Mailto_list = [""] # mail recipient's email address
The above code is the email address of the email recipient. If we want to send emails to multiple users, we only need to bind the email account of the recipient to this list.
Encrypted SMTP
When the standard port 25 is used to connect to the SMTP server, plaintext transmission is used, and the whole process of sending emails may be eavesdropped. To send emails more securely, You can encrypt the SMTP session. In fact, you must first create an SSL secure connection and then use the SMTP protocol to send emails.
Method: After creating an SMTP object, call the starttls () method immediately to create a secure connection.

Smtp_server = 'smtp .qq.com 'smtp _ port = 25 # The default port number is 25 server = smtplib. SMTP (smtp_server, smtp_port) server. starttls () # The remaining code is exactly the same as the previous one: server. set_debuglevel (1) # print all interaction information with the SMTP server
The above is a detailed explanation of the Python mail, hope to help you learn.
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