Repair Smtp Server Error 5.5.1 Authentication Required Fix (Solved)

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Smtp Server Error 5.5.1 Authentication Required Fix

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Professional services Want to open a new store? What is the difference between brake cables and derailleur cables? Access for less secure apps Turn off (default) Turn On Click on Turn On option to authorize emails sending through while programming (MVC, C#, PHP, Java etc.) with required credentials asked 3 years ago viewed 131535 times active 4 months ago Get the weekly newsletter! navigate here

Alternatively, you can also use this link Send Mail to send email directly.DeleteReplyUnknown20 October 2016 at 04:36you tutorial is very helpReplyDeleteAdd commentLoad more... worked for me, thanks :) –Sunny Oct 25 '13 at 8:51 2 In that case you should share your code. We prevented the sign-in attempt in case this was a hijacker trying to access your account. more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed http://www.nopcommerce.com/boards/t/23569/solved-551-authentication-required-with-smtpgmailcom.aspx

The Smtp Server Requires A Secure Connection Or The Client Was Not Authenticated. C#

solution 1 for case 3:(This might be helpful) you need to review the activity. Please select a comment to reply You can add your comment about this article using the form below. check [this post][1] [1]: stackoverflow.com/a/20186909/709340 –Reza Nov 27 '13 at 16:47 You should consider to specify SMTP configuration data in config file and do not overwrite them in a Loading...

Encrypt and Decrypt Connection String in App.Config file Here Mudassar Ahmed Khan has provided a tutorial with example to encrypt and decrypt Connection String in App.Config file used in Windows and Sign in to make your opinion count. Good luck! The Server Response Was: 5.7.0 Must Issue A Starttls Command First And you did not tell us what the error is.

Choose any of the one solution: 1) Log in to production server via remote access, and sign in to gmail once with your credentials. The Server Response Was 5.5.1 Authentication Required C# Join them; it only takes a minute: Sign up The SMTP server requires a secure connection or the client was not authenticated. try the solution 3 solution 3 for case 3: You have to enable login from other timezone / ip for your google account. but reviewing the activity will not be helpful due to latest security standards the link will not be useful.

Subject 'example', Account: 'pop.gmail.com', Server: 'smtp.gmail.com', Protocol: SMTP, Server Response: '530 5.5.1 Authentication Required f45sm8616pyh', Port: 25, Secure(SSL): Yes, Server Error: 530, Error Number: 0x800CCC78. Sql Server The Smtp Server Requires A Secure Connection Or The Client Was Not Authenticated Account: 'pop.gmail.com', Server: 'pop.gmail.com', Protocol: POP3, Port: 995, Secure(SSL): No, Error Number: 0x800CCC0F. The server response was: 5.5.1 Authentication Required 15 The SMTP server requires a secure connection or the client was not authenticated. Or 2) log in gmail to your local computer, Follow this Link and choose review this activity and take proper actions.

  1. The server response was: Access denied - Invalid HELO name (See RFC2821 4.1.1.1)while sending mail from specified domainits working perfectly while i m using gmail.how to fix it when using a
  2. Please review the details of the sign-in attempt: Friday, 3 January 2014 13:56:08 o'clock UTC IP Address: xxx.xx.xx.xxx (abcd.net.) Location: Philadelphia PA, Philadelphia, PA, USA If you do not recognise this
  3. Reset password If this was you and you are having trouble accessing your account, complete the troubleshooting steps listed at http://support.google.com/mail?p=client_login Yours sincerely, The Google Accounts team c# .net smtp gmail
  4. This (number 2) is the most likely scenario, as my weak password was about 4 months old, and it let me use it in Gmail.It's pretty bad that they said nothing
  5. Accidentally modified .bashrc and now I cant login despite entering password correctly Did I participate in the recent DDoS attacks on Dyn's DNS service?
  6. But what if you don't have access to the production server.try the solution 3 solution 3 for case 3:You have to enable login from other timezone / ip for your google
  7. Please make sure you have set SMTP authentication correctly in your script, for sample code, please click here 2.

The Server Response Was 5.5.1 Authentication Required C#

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You little beauty! –George Harnwell Apr 22 '15 at 14:55 2 lesssecureapps link above helped :) –Gautam Jain Oct 30 '15 at 12:27 Solution 2 worked perfect charm! The Smtp Server Requires A Secure Connection Or The Client Was Not Authenticated. C# Fix:Enable POP in Gmail as follows: Sign in to Gmail. 5.5.1 Authentication Required Gmail C# Linked 0 Unable to send email programmatically 596 Sending email in .NET through Gmail 171 Sending email through Gmail SMTP server with C# 86 Gmail Error :The SMTP server requires a

up vote 37 down vote favorite 10 I want to send an email from my application and i have written following code for sending mail MailMessage msg = new MailMessage(); msg.From check over here The server response was: 5.5.1 Authentication Required?0Error. This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL) Top Experts Last 24hrsThis month OriginalGriff 145 CPallini 85 RyanDev 55 How do really talented people in academia think about people who are less capable than them? The Smtp Server Requires A Secure Connection Or The Client Was Not Authenticated. Powershell

See more: ASP.NET email SMTP Gmail hii all i am getting an error in sending mail module in my asp .net web application. Sure, If any help more required, let me know.DeleteReplySuman Roy13 November 2015 at 23:07what are the steps for ymail and live mail sir?ReplyDeleteRepliesAnjan Kant16 November 2015 at 23:38Change this code smtp.Host You should sign in to your account and reset your password immediately. his comment is here share|improve this answer answered Oct 23 '13 at 3:57 Shuchita Bora 711 Best answer indeed!

First, most of the answers above are also required, but in my case, it was a simple matter of ordering of the code while creating the SmtpClient class. The Server Response Was 5.5.1 Authentication Required Asp Net The server response was: 5.5.1 Authentication Required", than the error might occur due to following cases. Sign in 23 3 Don't like this video?

share|improve this answer edited Oct 29 '14 at 21:18 George Stocker♦ 39.8k25133202 answered Oct 29 '14 at 18:00 Trung 8111 add a comment| up vote 5 down vote I have faced

what should i write there? –Abhay Andhariya Aug 30 '13 at 4:19 there is no app.config file in my mvc application. –Abhay Andhariya Aug 30 '13 at 6:03 add Also check your gmail inbox if you are getting any security alerts. I finally stumbled across the solution in my case so thought I would share. Office 365 The Smtp Server Requires A Secure Connection Or The Client Was Not Authenticated Private Function SendErrorThroughEmail(FilePath As String) As String Dim UserName As String = "[email protected]" Dim tmpString As String Dim client As SmtpClient = New SmtpClient("smtp.gmail.com", 587) client.EnableSsl = True client.Credentials = New

Learn more at plz help my contact ni 9714411582ReplyDeleteRepliesAnjan Kant9 June 2016 at 05:40Did you try all required steps provided above in this article.DeleteKrish Krish4 July 2016 at 12:15hi anjan,...i have The server response was: 5.5.1 Authentication Required7The SMTP server requires a secure connection or the client was not authenticated. The entry 'DefaultConnection' has already been added. weblink Because it has attracted low-quality or spam answers that had to be removed, posting an answer now requires 10 reputation on this site (the association bonus does not count).

The SMTP server requires a secure connection or the client was not authenticated. I have found this solution: Google may block sign in attempts from some apps or devices that do not use modern security standards. Article ID: 1546, Created: January 13, 2014 at 12:15 AM, Modified: April 23 at 10:53 PM Share this articleFacebookGoogle+TwitterOther Social Networks × Share With OthersBlinkListBlogmarksdel.icio.usDiggDiigoFacebookFriendFeedGoogle+LinkedInNetvouzNewsVineRedditStumbleUponTumblrTwitterYahoo BookmarksCancelPrint Help Desk Software powered by http://stackoverflow.com/questions/20906077/gmail-error-the-smtp-server-requires-a-secure-connection-or-the-client-was-not#26709761[^] Permalink Posted 10-Jan-15 17:54pm sudip singh395 Rate this: Please Sign up or sign in to vote.

Incorrect Gmail Username and/or password First you must check whether the Username and Password supplied are correct. share|improve this answer edited Jul 31 '14 at 16:43 fortran 38.8k1387135 answered Jul 31 '14 at 16:02 Anik 6111 I did not have two-step enabled for this account and Why don't we see "the milky way" in both directions? Why were Native American code talkers used during WW2?

Published on Jan 20, 2016If you receive an error message when using Gmail:The SMTP server requires a secure connection or the client was not authenticated. I entered this link: https://www.google.com/settings/security/lesssecureapps Then I turn on the secure app and, and the it worked. In such cases check other answer of @mjb as below Below is the very general thing that i always check first for such issues client.UseDefaultCredentials = true; set it to false. And that's it.

The host 'smpt.gmail.com' could not be found. Move to Security Feature Now click on Gmail Setting Feature, move to security feature or alternatively can hit/paste this URL in your browser https://www.google.com/settings/security/lesssecureapps where you can see settings. The underlying provider failed on open Introduction I am now providing resolution of The underlying provider failed on open problem whenever we are working on across the net... You production server and the mail id you have used both are in different time zone.

Code in Web.config file

Click Forwarding and POP/IMAP. You can set it up to accept the login from your application. The server response was: 5.5.1 Authentication Required?1Mail Error:The SMTP server requires a secure connection or the client was not authenticated.