Python email verification?

Question

Anybody know of a way with Python to get an alert if an email address is invalid?? Below is my current script but I would like to integrate a way to be notified if an email address is invalid and does not get sent. I've read of a way to use server.verify to do this but was unable to get it to work for me. import arcpy, datetime, smtplib, os, email, email.mime.application arcpy.env.overwriteOutput = True points = r"******************.shp" # feature class today = datetime.date.today() # creating date time variable dte = today.strftime('%m/%d/%Y') # converts date time variable to string dtep = today.strftime('%m_%d_%Y') fields = ['Applicant', 'Date_Final', 'Email', 'Permit_No'] # define fields for search cursor and print format to use arcpy.MakeFeatureLayer_management(points, 'FinalizedApproaches') #makes approaches fc a feature layer for use in this script with arcpy.da.SearchCursor(points, fields, "Date_Final = CURRENT_DATE") as cursor: for row in cursor: print "{} {} {}".format(row[0], " Finalized", row[2]) print " " print "{} list generated".format(dte) print " " print "Finalized notifications are being generated" print " " with arcpy.da.SearchCursor(points, fields, "Date_Final = CURRENT_DATE") as email_cursor: for row in cursor: SERVER = "****************" msg = email.mime.Multipart.MIMEMultipart() msg['Subject'] = "Test" msg['From'] = "***********" msg['To'] = "*********" msg['Cc'] = "*********" msg['Cc2'] = "*********" body = email.mime.Text.MIMEText(""' {}, '.format(row[0]) + " " + "This is to notify you that your approach" + " (" + '{}'.format(row[3]) + ") " + "has been finalized.""") msg.attach(body) filename=r"*******.pdf" fp=open(filename,'rb') att = email.mime.application.MIMEApplication(fp.read(),_subtype="pdf") fp.close() att.add_header('Content-Disposition','attachment',filename="{}.pdf".format(row[3])) msg.attach(att) server = smtplib.SMTP(SERVER) server.sendmail('*********', [msg['To'],msg['cc'],msg['Cc2']], msg.as_string()) server.quit() print "Finalized approach notifications sent."‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

Anonymous User · Answer

The ['From'] address pretty much just shows as a from address to the recipient. When scripting the email process it is sent directly from my email server and not really a specific email address on the server. No notification is sent to me with this script if an email is invalid. If I open outlook and manually send to a invalid email address I am notified.

deleted-user-qpvAI3Fo0MKR · Answer

Forgive me for answering your question with a question, but if your msg['From'] variable is your email address wouldn't the bad address return a non-deliverable error message to your email address?