1/22/2025 2:38:33 PM - Message: Mailbox unavailable. The server response was: No such recipient here StackTrace: at System.Net.Mail.SmtpTransport.SendMail(MailAddress sender, MailAddressCollection recipients, String deliveryNotify, Boolean allowUnicode, SmtpFailedRecipientException& exception) at System.Net.Mail.SmtpClient.Send(MailMessage message) at Surveya_Service.Helper.SendMail(String to, String subject, String message, Boolean isHTML, String from, Attachment mailAttachment) in C:\Projects\Surveya\surveya_service_and_webapp\Surveya Service\Helper.cs:line 64 1/22/2025 2:41:55 PM - Message: Mailbox unavailable. The server response was: No such recipient here StackTrace: at System.Net.Mail.SmtpTransport.SendMail(MailAddress sender, MailAddressCollection recipients, String deliveryNotify, Boolean allowUnicode, SmtpFailedRecipientException& exception) at System.Net.Mail.SmtpClient.Send(MailMessage message) at Surveya_Service.Helper.SendMail(String to, String subject, String message, Boolean isHTML, String from, Attachment mailAttachment) in C:\Projects\Surveya\surveya_service_and_webapp\Surveya Service\Helper.cs:line 64 1/22/2025 2:42:36 PM - Message: Mailbox unavailable. The server response was: No such recipient here StackTrace: at System.Net.Mail.SmtpTransport.SendMail(MailAddress sender, MailAddressCollection recipients, String deliveryNotify, Boolean allowUnicode, SmtpFailedRecipientException& exception) at System.Net.Mail.SmtpClient.Send(MailMessage message) at Surveya_Service.Helper.SendMail(String to, String subject, String message, Boolean isHTML, String from, Attachment mailAttachment) in C:\Projects\Surveya\surveya_service_and_webapp\Surveya Service\Helper.cs:line 64