How To Fix Smtpclient Error Sending Email Tutorial

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Smtpclient Error Sending Email


Direct send allows email to be sent only to recipients in your organization that are hosted in Office 365. To send a test email, follow these steps in the article, Use Telnet to Test SMTP Communication. Did Salesforce recently update their aura library? Error: Client was not authenticated to send anonymous mail during MAIL FROM This error indicates that your printer connects to the SMTP client submission endpoint (

The fix is simple - declare it once, outside the loop... Posted 25-Aug-11 20:39pm suryaswathi674 Updated 25-Aug-11 20:45pm Prerak Patel141.8K v2 Add a Solution Comments Prerak Patel 26-Aug-11 2:45am Use code block for code segments. 4 solutions Top Rated Most hMailServer does not include support for the VRFY verb. 503 Issue a reset if you want to start over When an email client delivers an email message to an email server, Join them; it only takes a minute: Sign up .Net smtp not sending emails, no errors up vote 0 down vote favorite I am trying to send email through the web

The Remote Name Could Not Be Resolved '' C#

For some reason, its not working and neither is it throwing any errors. If this DNS query fails, the above error message is reported. Jeff Have you Binged a solution before posting?

  • Contact your device manufacturer to confirm that it supports TLS version 1.0 or above.
  • Error messages in bounce messages The mail server software tried to deliver e-mail to the local machine This error message typically indicates a server configuration error.
  • MailPriority.High;//Text/HTML mailMessage.IsBodyHtml = false;//Set the subjet and body text //mailMessage.Subject = txtSubject.Text.Trim(); mailMessage.Body = txtBody.Text.Trim(); //Add one to many attachments //mailMessage.Attachments.Add(New System.Net.Mail.Attachment("c:\temp.txt") //Create an instance of
  • For example, say you have an alias named [email protected] pointing at [email protected], and the alias [email protected] is pointing at [email protected]
  • The hMailServer error log will contain error codes from the DNS-client in Windows.
  • share|improve this answer answered May 25 '12 at 12:27 Marc Roussel 111 add a comment| up vote 1 down vote Seeing your loop for sending emails and the error which you
  • Random noise based on seed Why don't miners get boiled to death at 4km deep?
  • if so you can check the innerexceptions list and view the StatusCode to get more information.
  • Any help on how to describe what I'm doing would also help.

In a World Where Gods Exist Why Wouldn't Every Nation Be Theocratic? Can a Grappled Monk viably use Open Hand Technique to end the grapple? If you have disabled Allow empty sender address, the sender verification will fail, since the recipients SMTP server tries to verify by using an empty sender address.

Search documentation The Remote Name Could Not Be Resolved Smtp Google Com Check whether your IP address is on a block list by using a third-party service, such as MXToolbox or WhatIsMyIPAddress.

but the answer by Nip sounds like it is fairly usefull too share|improve this answer answered Mar 9 '10 at 23:12 Nnp 96332347 add a comment| up vote 2 down vote Failure Sending Mail C# Type open 587 (or substitute 25 for 587 if you are using that port setting instead). If the MX endpoint is too long, consider using SMTP client submission, which has a shorter endpoint ( client.UseDefaultCredentials = true; try { client.Send(message); } catch (Exception ex) { Console.WriteLine("Exception caught in CreateTestMessage2(): {0}", ex.ToString() ); } } SecuritySmtpPermissionto connect to the SMTP server.

The host name the sending server gives in the HELO command should resolve to the IP address of the same server. Failure Sending Mail. At Message) Test the user name and password by logging on to Outlook on the web, and try to send a test email to make sure the account is not blocked. i am stuck please help. –Nnp Feb 8 '10 at 22:03 | show 1 more comment up vote 1 down vote For us, everything was fine, emails are very small and What is the relation between Aliasing and Flickering?

Failure Sending Mail C#

Your Email This email is in use. Regards share|improve this answer answered Oct 3 '13 at 20:09 12421 add a comment| up vote 1 down vote Have you verified that the client SMTP server has a valid The Remote Name Could Not Be Resolved '' C# Office 365 uses block lists to protect our service. Smtpclient Failure Sending Mail Error messages not generated by hMailServer 550 Mailbox unavailable hMailServer never generates this error message.

Please help!! hMailServer does not include support for the TURNverb. 502 Unimplemented command If aSMTPclient tries to use a command which hMailServer has no implementation for, this error message is sent to the Terms of Service Layout: fixed | fluid CodeProject, 503-250 Ferrand Drive Toronto Ontario, M3C 3G8 Canada +1 416-849-8900 x 100 PRODUCTS EmailArchitect Email Server EASendMail SMTP COMPONENT (.NET/ActiveX) EAGetMail POP3 & Specialization in Graphic Design - niche vs. C# Smtpclient

Error: Client was not authenticated to send anonymous mail during MAIL FROM This indicates that you are connecting to the SMTP client submission endpoint (, which can't be used for direct This error message is issued if grey listing is enabled, and the sender, recipient and IP address triplet does not match an existing greylisting triplet. 500 Line too long If a I looked some of the relative questions on this same website for eg Sending email through Gmail SMTP server with C# but none of them was helpful. Follow up with the organization that added your IP address to their block list.

i found this , in the last post of this forum somebody says to use lient.ServicePoint.MaxIdleTime = 1; does that make sense? –Nnp Feb 5 '10 at 20:03 C# Send Email With Attachment To send a test email, follow these steps in the article, Use Telnet to Test SMTP Communication. If you aren't sending from your own static IP address, consider SMTP client submission instead.

This verification works the following way: hMailServer connects to the recipients SMTP server hMailServer tells the recipients SMTP server that the email is from [email protected] The recipients SMTP server looks up

Tutorial - Index Send Email in C# - Tutorial Send Email over SSL in C# Send Email using Gmail in C# Send Email using Yahoo in C# Send Email using Hotmail/Live/Outlook/Office If antispam tools detect outbound spam from your organization, your IP address can be blocked by a spam block list. What exactly is a "bad" "standard" or "good" annual raise? Ping Request Could Not Find Host Smtp Gmail Com This indicates a bug in the SMTPclient. 504 Authentication mechanism not supported.

more hot questions question feed lang-cs about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation My printer is already configured for email, but I don’t know which configuration option it uses Below are the three configuration options to help you identify which one is in use: See Also How to configure IIS for relay with Office 365 Share Was this information helpful? Nov 30, 2009 08:21 PM|svmr|LINK HiSsinga2, You have to assign the SMTP Server and SMTP Port of the SMTPClient object.

When sending e-mail using Send to multiple recipients and the SMTP server accepts some recipients as valid and rejects others, Send sends e-mail to the accepted recipients and then a SmtpFailedRecipientsException How to explain centuries of cultural/intellectual stagnation?