Using office365 smtp #3962

3 Answer(s)

• 

  0

  luckyduck created 6 years ago

  Have you sent this post [https://forum.aspnetboilerplate.com/viewtopic.php?f=5&t=6830&p=15927&hilit=office365+ab#p22321])?

  Based on this, I went direct using this article as a guide - [https://weblogs.asp.net/sreejukg/send-email-using-office-365-account-and-c]). Also refer to [https://stackoverflow.com/questions/30342884/the-server-response-was-5-7-57-smtp-client-was-not-authenticated-to-send-anony]) in case you run into authentication issues (which I did).

  I still intend to use ABP SettingManager to store the config settings.

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• 

  0

  evadmin created 6 years ago

  The problem I encountered is based on some quirks of using smtp.Office365.com. After reading a bit about sending emails with Office365 and MailKit, I solved my problem by replacing DefaultMailKitSmtpBuilderwith a custom one that's exactly the same with the addition of two lines:

  client.ServerCertificateValidationCallback = (s, c, h, e) => true; and client.AuthenticationMechanisms.Remove("XOAUTH2");

  Here's my complete Office365SmtpBuilder implementation:

  public class Office365SmtpBuilder : IMailKitSmtpBuilder
      {
          private readonly ISmtpEmailSenderConfiguration _smtpEmailSenderConfiguration;
  
          public Office365SmtpBuilder(ISmtpEmailSenderConfiguration smtpEmailSenderConfiguration)
          {
              _smtpEmailSenderConfiguration = smtpEmailSenderConfiguration;
          }
  
          public virtual SmtpClient Build()
          {
              var client = new SmtpClient();
  
              try
              {
                  ConfigureClient(client);
                  return client;
              }
              catch
              {
                  client.Dispose();
                  throw;
              }
          }
  
          protected virtual void ConfigureClient(SmtpClient client)
          {
              client.ServerCertificateValidationCallback = (s, c, h, e) => true;  //added this line
  
              client.Connect(
                  _smtpEmailSenderConfiguration.Host,
                  _smtpEmailSenderConfiguration.Port,
                  _smtpEmailSenderConfiguration.EnableSsl
              );
  
              client.AuthenticationMechanisms.Remove("XOAUTH2");  //added this line
  
              var userName = _smtpEmailSenderConfiguration.UserName;
              if (!userName.IsNullOrEmpty())
              {
                  client.Authenticate(
                      _smtpEmailSenderConfiguration.UserName,
                      _smtpEmailSenderConfiguration.Password
                  );
              }
          }
      }
  

  I replaced the DefaultMailKitSmtpBuilder service by updating my AdminCoreModule in the PreInitialize() method:

  if (DebugHelper.IsDebug)
              {
                  //Disabling email sending in debug mode
                  Configuration.ReplaceService<IMailKitSmtpBuilder, Office365SmtpBuilder>(DependencyLifeStyle.Transient);
              }
  

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• 

  0

  ismcagdas created 6 years ago

  Support Team

  Thanks for sharing your solution @evadmin.

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