Sending email in NET through Gmail

Question

Instead of relying on my host to send an email  I was thinking of sending the email messages using my Gmail account  The emails are personalized emails to the bands I play on my show    Is it possible to do it

User · Answer

I had the same issue  but it was resolved by going to gmail s security settings and Allowing Less Secure apps  The Code from Domenic  amp  Donny works  but only if you enabled that setting  If you are signed in  to Google  you can follow this link and toggle  Turn on  for  Access for less secure apps

User · Answer

use this way   MailMessage sendmsg   new MailMessage SendersAddress  ReceiversAddress  subject  body    SmtpClient client   new SmtpClient  smtp gmail com     client Port   Convert ToInt32  587    client EnableSsl   true  client Credentials   new System Net NetworkCredential  mail-id gmail com   MyPassWord    client Send sendmsg     Don t forget this    using System Net  using System Net Mail

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This is to send email with attachement   Simple and short    source  http   coding-issues blogspot in 2012 11 sending-email-with-attachments-from-c html  using System Net  using System Net Mail   public void email send         MailMessage mail   new MailMessage        SmtpClient SmtpServer   new SmtpClient  smtp gmail com        mail From   new MailAddress  your mail gmail com        mail To Add  to mail gmail com        mail Subject    Test Mail - 1       mail Body    mail with attachment        System Net Mail Attachment attachment      attachment   new System Net Mail Attachment  c  textfile txt        mail Attachments Add attachment        SmtpServer Port   587      SmtpServer Credentials   new System Net NetworkCredential  your mail gmail com    your password        SmtpServer EnableSsl   true       SmtpServer Send mail

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Try This       private void button1 Click object sender  EventArgs e                try                       MailMessage mail   new MailMessage                SmtpClient SmtpServer   new SmtpClient  smtp gmail com                 mail From   new MailAddress  your email address gmail com                mail To Add  to address                mail Subject    Test Mail               mail Body    This is for testing SMTP mail from GMAIL                SmtpServer Port   587              SmtpServer Credentials   new System Net NetworkCredential  username    password                SmtpServer EnableSsl   true               SmtpServer Send mail               MessageBox Show  mail Send                      catch  Exception ex                        MessageBox Show ex ToString

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Try this one   public static bool Send string receiverEmail  string ReceiverName  string subject  string body            MailMessage mailMessage   new MailMessage            MailAddress mailAddress   new MailAddress  abc gmail com    Sender Name       abc gmail com   input Sender Email Address          mailMessage From   mailAddress          mailAddress   new MailAddress receiverEmail  ReceiverName           mailMessage To Add mailAddress           mailMessage Subject   subject          mailMessage Body   body          mailMessage IsBodyHtml   true           SmtpClient mailSender   new SmtpClient  smtp gmail com   587                        EnableSsl   true              UseDefaultCredentials   false              DeliveryMethod   System Net Mail SmtpDeliveryMethod Network              Credentials   new NetworkCredential  abc gmail com    pass        abc gmail com   input sender email address                                                                                pass   sender email password                     try                       mailSender Send mailMessage               return true                    catch  SmtpFailedRecipientException ex                          Write the exception to a Log file                    catch  SmtpException ex                           Write the exception to a Log file                    finally                       mailSender   null              mailMessage Dispose                      return false

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To avoid security issues in Gmail  you should generate an app password first from your Gmail settings and you can use this password instead of a real password to send an email even if you use two steps verification

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Copying from another answer  the above methods work but gmail always replaces the  from  and  reply to  email with the actual sending gmail account   apparently there is a work around however   http   karmic-development blogspot in 2013 10 send-email-from-aspnet-using-gmail-as html   3  In the Accounts Tab  Click on the link  Add another email address you own  then verify it   Or possibly this  Update 3  Reader Derek Bennett says   The solution is to go into your gmail Settings Accounts and  Make default  an account other than your gmail account  This will cause gmail to re-write the From field with whatever the default account s email address is

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Be sure to use System Net Mail  not the deprecated System Web Mail  Doing SSL with System Web Mail is a gross mess of hacky extensions   using System Net  using System Net Mail   var fromAddress   new MailAddress  from gmail com    From Name    var toAddress   new MailAddress  to example com    To Name    const string fromPassword    fromPassword   const string subject    Subject   const string body    Body    var smtp   new SmtpClient       Host    smtp gmail com       Port   587      EnableSsl   true      DeliveryMethod   SmtpDeliveryMethod Network      UseDefaultCredentials   false      Credentials   new NetworkCredential fromAddress Address  fromPassword     using  var message   new MailMessage fromAddress  toAddress        Subject   subject      Body   body          smtp Send message

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Here is my version   Send Email In C   Using Gmail    using System  using System Net  using System Net Mail   namespace SendMailViaGmail      class Program         static void Main string   args                Specify senders gmail address       string SendersAddress    Sendersaddress gmail com           Specify The Address You want to sent Email To can be any valid email address        string ReceiversAddress    ReceiversAddress yahoo com           Specify The password of gmial account u are using to sent mail pw of sender gmail com        const string SendersPassword    Password           Write the subject of ur mail       const string subject    Testing           Write the contents of your mail       const string body    Hi This Is my Mail From Gmail          try                   we will use Smtp client which allows us to send email using SMTP Protocol           i have specified the properties of SmtpClient smtp within             gmails smtp server name is smtp gmail com and port number is 587         SmtpClient smtp   new SmtpClient                      Host    smtp gmail com              Port   587             EnableSsl   true             DeliveryMethod   SmtpDeliveryMethod Network             Credentials      new NetworkCredential SendersAddress  SendersPassword              Timeout   3000                       MailMessage represents a mail message           it is 4 parameters From TO subject body           MailMessage message   new MailMessage SendersAddress  ReceiversAddress  subject  body             WE use smtp sever we specified above to send the message MailMessage message             smtp Send message           Console WriteLine  Message Sent Successfully            Console ReadKey                 catch  Exception ex                 Console WriteLine ex Message           Console ReadKey

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For me to get it to work  i had to enable my gmail account making it possible for other apps to gain access  This is done with the  enable less secure apps  and also using this link  https   accounts google com b 0 DisplayUnlockCaptcha

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Source   Send email in ASP NET C   Below is a sample working code for sending in a mail using C   in the below example I am using google   s smtp server    The code is pretty self explanatory  replace email and password with your email and password values   public void SendEmail string address  string subject  string message        string email    yrshaikh mail gmail com       string password    put-your-GMAIL-password-here        var loginInfo   new NetworkCredential email  password       var msg   new MailMessage        var smtpClient   new SmtpClient  smtp gmail com   587        msg From   new MailAddress email       msg To Add new MailAddress address        msg Subject   subject      msg Body   message      msg IsBodyHtml   true       smtpClient EnableSsl   true      smtpClient UseDefaultCredentials   false      smtpClient Credentials   loginInfo      smtpClient Send msg

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You can try Mailkit  It gives you better and advance functionality for send mail  You can find more from this Here is an example       MimeMessage message   new MimeMessage        message From Add new MailboxAddress  FromName    YOU FROM ADDRESS gmail com         message To Add new MailboxAddress  ToName    YOU TO ADDRESS gmail com         message Subject    MyEmailSubject        message Body   new TextPart  plain                 Text     MyEmailBodyOnlyTextPart              using  var client   new SmtpClient                  client Connect  SERVER   25      25 is port you can change accordingly             Note  since we don t have an OAuth2 token  disable            the XOAUTH2 authentication mechanism          client AuthenticationMechanisms Remove  XOAUTH2                Note  only needed if the SMTP server requires authentication         client Authenticate  YOUR USER NAME    YOUR PASSWORD             client Send message           client Disconnect true

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Here is one method to send mail and getting credentials from web config   public static string SendEmail string To  string Subject  string Msg  bool bodyHtml   false  bool test   false  Stream AttachmentStream   null  string AttachmentType   null  string AttachmentFileName   null        try               System Net Mail MailMessage newMsg   new System Net Mail MailMessage System Configuration ConfigurationManager AppSettings  mailCfg    To  Subject  Msg           newMsg BodyEncoding   System Text Encoding UTF8          newMsg HeadersEncoding   System Text Encoding UTF8          newMsg SubjectEncoding   System Text Encoding UTF8           System Net Mail SmtpClient smtpClient   new System Net Mail SmtpClient            if  AttachmentStream    null  amp  amp  AttachmentType    null  amp  amp  AttachmentFileName    null                        System Net Mail Attachment attachment   new System Net Mail Attachment AttachmentStream  AttachmentFileName               System Net Mime ContentDisposition disposition   attachment ContentDisposition              disposition FileName   AttachmentFileName              disposition DispositionType   System Net Mime DispositionTypeNames Attachment               newMsg Attachments Add attachment                     if  test                        smtpClient PickupDirectoryLocation    C   TestEmail               smtpClient DeliveryMethod   System Net Mail SmtpDeliveryMethod SpecifiedPickupDirectory                    else                         smtpClient EnableSsl   true                     newMsg IsBodyHtml   bodyHtml          smtpClient Send newMsg           return SENT OK            catch  Exception ex                 return  Error      ex Message                  lt br  gt  lt br  gt Inner Exception                   ex InnerException             And the corresponding section in web config    lt appSettings gt       lt add key  mailCfg  value  yourmail example com   gt   lt  appSettings gt   lt system net gt     lt mailSettings gt       lt smtp deliveryMethod  Network  from  yourmail example com  gt         lt network defaultCredentials  false  host  mail exapmple com  userName  yourmail example com  password  your password  port  25   gt       lt  smtp gt     lt  mailSettings gt   lt  system net gt

User · Answer

Google may block sign in attempts from some apps or devices that do not use modern security standards  Since these apps and devices are easier to break into  blocking them helps keep your account safer   Some examples of apps that do not support the latest security standards include    The Mail app on your iPhone or iPad with iOS 6 or below The Mail app on your Windows phone preceding the 8 1 release Some Desktop mail clients like Microsoft Outlook and Mozilla Thunderbird   Therefore  you have to enable Less Secure Sign-In in your google account   After sign into google account  go to   https   myaccount google com lesssecureapps  or  https   www google com settings security lesssecureapps   In C   you can use the following code   using  MailMessage mail   new MailMessage          mail From   new MailAddress  email gmail com        mail To Add  somebody domain com        mail Subject    Hello World       mail Body     lt h1 gt Hello lt  h1 gt        mail IsBodyHtml   true      mail Attachments Add new Attachment  C   file zip          using  SmtpClient smtp   new SmtpClient  smtp gmail com   587                 smtp Credentials   new NetworkCredential  email gmail com    password            smtp EnableSsl   true          smtp Send mail

User · Answer

For the other answers to work  from a server  first Turn On Access for less secure apps in the gmail account   Looks like recently google changed it s security policy  The top rated answer no longer works  until you change your account settings as described here  https   support google com accounts answer 6010255 hl en-GB    As of March 2016  google changed the setting location again

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If your Google password doesn t work  you may need to create an app-specific password for Gmail on Google  https   support google com accounts answer 185833 hl en

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If you want to send background email  then please do the below   public void SendEmail string address  string subject  string message      Thread threadSendMails   threadSendMails   new Thread delegate                  Place your Code here              threadSendMails IsBackground   true    threadSendMails Start        and add namespace  using System Threading

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Changing sender on Gmail   Outlook com email   To prevent spoofing - Gmail Outlook com won t let you send from an arbitrary user account name   If you have a limited number of senders you can follow these instructions and then set the From field to this address  Sending mail from a different address  If you are wanting to send from an arbitrary email address  such as a feedback form on website where the user enters their email and you don t want them emailing you directly  about the best you can do is this            msg ReplyToList Add new System Net Mail MailAddress email  friendlyName      This would let you just hit  reply  in your email account to reply to the fan of your band on a feedback page  but they wouldn t get your actual email which would likely lead to a tonne of spam   If you re in a controlled environment this works great  but please note that I ve seen some email clients send to the from address even when reply-to is specified  I don t know which

User · Answer

The above answer doesn t work  You have to set DeliveryMethod   SmtpDeliveryMethod Network or it will come back with a  client was not authenticated  error  Also it s always a good idea to put a timeout   Revised code   using System Net Mail  using System Net   var fromAddress   new MailAddress  from gmail com    From Name    var toAddress   new MailAddress  to yahoo com    To Name    const string fromPassword    password   const string subject    test   const string body    Hey now      var smtp   new SmtpClient       Host    smtp gmail com       Port   587      EnableSsl   true      DeliveryMethod   SmtpDeliveryMethod Network      Credentials   new NetworkCredential fromAddress Address  fromPassword       Timeout   20000    using  var message   new MailMessage fromAddress  toAddress        Subject   subject      Body   body          smtp Send message

User · Answer

using System  using System Net  using System Net Mail   namespace SendMailViaGmail      class Program         static void Main string   args                Specify senders gmail address       string SendersAddress    Sendersaddress gmail com           Specify The Address You want to sent Email To can be any valid email address        string ReceiversAddress    ReceiversAddress yahoo com           Specify The password of gmial account u are using to sent mail pw of sender gmail com        const string SendersPassword    Password           Write the subject of ur mail       const string subject    Testing           Write the contents of your mail       const string body    Hi This Is my Mail From Gmail          try                   we will use Smtp client which allows us to send email using SMTP Protocol           i have specified the properties of SmtpClient smtp within             gmails smtp server name is smtp gmail com and port number is 587         SmtpClient smtp   new SmtpClient                      Host    smtp gmail com              Port   587             EnableSsl   true             DeliveryMethod   SmtpDeliveryMethod Network             Credentials   new NetworkCredential SendersAddress  SendersPassword              Timeout   3000                       MailMessage represents a mail message           it is 4 parameters From TO subject body           MailMessage message   new MailMessage SendersAddress  ReceiversAddress  subject  body             WE use smtp sever we specified above to send the message MailMessage message             smtp Send message           Console WriteLine  Message Sent Successfully            Console ReadKey                catch  Exception ex                 Console WriteLine ex Message           Console ReadKey

User · Answer

I hope this code will work fine  You can have a try      Include this                  using System Net Mail   string fromAddress    xyz gmail com   string mailPassword                     Mail id password from where mail will be sent  string messageBody    Write the body of the message here         Create smtp connection  SmtpClient client   new SmtpClient    client Port   587   outgoing port for the mail  client Host    smtp gmail com   client EnableSsl   true  client Timeout   10000  client DeliveryMethod   SmtpDeliveryMethod Network  client UseDefaultCredentials   false  client Credentials   new System Net NetworkCredential fromAddress  mailPassword        Fill the mail form  var send mail   new MailMessage     send mail IsBodyHtml   true    address from where mail will be sent  send mail From   new MailAddress  from gmail com      address to which mail will be sent             send mail To Add new MailAddress  to example com      subject of the mail  send mail Subject    put any subject here    send mail Body   messageBody  client Send send mail

User · Answer

Include this   using System Net Mail    And then   MailMessage sendmsg   new MailMessage SendersAddress  ReceiversAddress  subject  body    SmtpClient client   new SmtpClient  smtp gmail com     client Port   Convert ToInt16  587    client Credentials   new System Net NetworkCredential  mail-id gmail com   password    client EnableSsl   true   client Send sendmsg

[c#] Sending email in .NET through Gmail

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