Home Products Downloads News Store Support

Authentication failed / Relaying error | Knowledge Base ▸ MaxBulk Mailer Pro

Authentication failed / Relaying error

Knowledge Base ▸ MaxBulk Mailer Pro

Compatible with MS Windows Compatible with MacOS

Authentication failed / Relaying error

Topics

Question: I successfully sent a message last week. Yesterday, I changed one word in the copy of the text and tried to resend it. I got errors. I did not revise settings. I subsequently took an old, successfully sent message, changed the recipient list to just be me and sent that message. I got the same error. Any insights?

Here’s the copy of the delivery log:

[01] 1/29 07:58:56 ~ Opening connection for delivery...
[01] 1/29 07:58:56 ~ Connecting to **********.com for POP authentication...
[00] 1/29 07:58:56 +OK Dovecot ready.
[00] 1/29 07:58:56 > USER *********
[00] 1/29 07:58:56 +OK
[00] 1/29 07:58:56 > PASS *********
[00] 1/29 07:58:59 -ERR [AUTH] Authentication failed.
[00] 1/29 07:58:59 > QUIT
[00] 1/29 07:58:59 +OK Logging out
[01] 1/29 07:58:59 ~ Connecting to smtp.********.net Port:25
[01] 1/29 07:58:59 ~ Connected
[01] 1/29 07:58:59 220 *************.net ESMTP server ready
[01] 1/29 07:58:59 > HELO [10.0.1.2]
[01] 1/29 07:58:59 250 ***********.net hello [**.**.**.**], pleased to meet you
[01] 1/29 07:58:59 > MAIL FROM:<*********@*****.com>
[01] 1/29 07:58:59 250 2.1.0 <*********@*****.com> sender ok
[01] 1/29 07:58:59 > RCPT TO:<*********@******.com> [1/1]
[01] 1/29 07:58:59 550 5.1.1 <*********@******.com> relaying not allowed

Answer: You are using an outdated authentication scheme, you should try ESMTP rather than POP. We provide the POP authentication for old servers but nowadays most servers will require the ESMTP authentication instead.

As a result, you get an 'Authentication failed' error and later your messages are not accepted for delivery with a relaying not allowed' error.

I recommend you to have a look at those two short videos, the first explains how to enter the server settings into MaxBulk Mailer and the second one explains how to read the MaxBulk Mailer connection log:





Stan Busk Stan Busk
January 30, 2018





Recent questions from our MaxBulk Mailer users
  Is Maxprog software prepared for macOS 11 Big Sur? NEW Screenshot
  How to transfer email lists between MaxBulk Mailer copies NEW Screenshot
  Images are missing in the message preview NEW Screenshot
  How to send an email with a picture in the body NEW YouTube Video
  Mail-merge sender data using tags NEW YouTube Video
  I set up my bulk email message but authentication fails NEW YouTube Video
  How can I send Base64 encoded messages with MaxBulk Mailer? NEW YouTube Video
  How do I use Mandrill for sending emails NEW Screenshot
  Emails not delivered despite successful delivery report UPDATED YouTube Video
  Do I need a mail server account to use MaxBulk Mailer? UPDATED YouTube Video
  How many emails can we send in a single click? UPDATED YouTube Video
  What does 'relay not permitted' mean? UPDATED YouTube Video
  Do I need my own SMTP server to use MaxBulk Mailer? UPDATED YouTube Video
  We want to include click-through in our emails. UPDATED YouTube Video
  What is the MaxBulk Mailer privacy policy? UPDATED Screenshot

  [Valid RSS]  Subscribe to Maxprog's Knowledge Base


MaxBulk Mailer is a full-featured and easy-to-use bulk mailer and mail-merge software for macOS and Windows that allows you to send out customized press releases, prices lists, newsletters and any kind of text or HTML documents to your customers or contacts.

MaxBulk Mailer is fast, fully customizable and very easy to use. MaxBulk Mailer handles plain text, HTML and rich text documents and gives full support for attachments. With MaxBulk Mailer you will create, manage and send your own powerful, personalized marketing message to your customers and potential customers.

Thanks to its advanced mail-merge and conditional functions you can send highly customized messages and get the best results of your campaigns. You also have support for international characters, a straightforward account manager with support for all type of authentication schemes including SSL, a complete and versatile list manager, support for importation from a wide range of sources including from remote mySQL and postgreSQL databases.

MaxBulk Mailer is a software tool that you purchase once, no need to pay on a per-email basis to submission services!

   Currency  70.00
59.99   
 

 

 

 

   
🔐 Site secured by Comodo SSL
  🟢 UptimeRobot - Site Loaded properly