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How to Enable SMTP Authentication for Mozilla Thunderbird Mail?

Enable SMTP Authentication for Mozilla Thunderbird Mail (Mac & Windows)

Follow the simple steps to enable SMTP authentication for the Mozilla Thunderbird Mail client for both Windows and Macintosh computers.

    1. Open Thunderbird Mail.Enable SMTP Authentication
    2. From the Tools menu select Account Settings.Enable SMTP Authentication
    3. The Account Settings box appears.Enable SMTP Authentication
    4. In the white area on the left, select the entry Outgoing Server (SMTP). The Outgoing Server (SMTP) Settings appear on the right.Enable SMTP Authentication
    5. In the list of servers, select the entry for smtp.gn.apc.org and click EditEnable SMTP Authentication
    6. Ensure that the settings are as follows:
  • Server Name: smtp.gn.apc.org
  • Port: 587
  • Connection security: STARTTLS
  • Authentication method: Normal Password
  • User Name: Your GreenNet username (the part of your email address before the “@” sign if using an @gn.apc.org address)

G. Click the OK button, and then click OK again

Authentication has now been enabled. Please note, you will be prompted for your password the first time that you send email. You can tick the box “Use Password Manager to remember the password” to avoid having to enter it every time that you send email.

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SMTP sending fails in thunderbird
Posted on July 13, 2018

10 thoughts on “How to Enable SMTP Authentication for Mozilla Thunderbird Mail?”

  1. Paultaf
    November 26, 2019 at 12:38 pm Reply

    Moving emails from Inbox to new folder
    I used to use an add on that when I pressed alt S? it would open up a window listing a search box, which would enable me to drill down all my folders until I was showing the one I wanted. I could also add a new folder. I think it has disappeared from my installation. Does anyone know what it was called? I think it was something like Quick move. I think I had it working in an earlier version of 68.
    Quick Folder Move?

    ATN Search
    http://addons.thunderbird.net/thunderbird/search/?q=Quick

    Quick Folder Move
    http://addons.thunderbird.net/thunderbird/addon/12018
    http://github.com/kewisch/quickmove-extension/releases

    There is a stop gap release available for Thunderbird 68.

  2. Marytaf
    November 28, 2019 at 3:38 pm Reply

    I keep getting popups to report that cannot update need to download new copy every time I do it is the same as installed.
    How can I stop this as the tools does not allow me to get update when I want to do so only gives two options not able to untick both either.

  3. Marktaf
    November 28, 2019 at 8:41 pm Reply

    TB not downloading content of IMAP folders
    I setup a new account in TB to connect to an existing (non-GMail) IMAP email account. The account has quite a few folders & subfolders.
    On connecting, all the folders appeared as expected. A couple of them then populated themselves with their content but all the others remain empty – not even any headers, let alone the body.

    Nothing I do seems to be able to persuade TB to download everything (or anything!) from the folders. I can open the folders and I can even go to Properties-Synchronization-Download Now – but nothing happens.
    (Any new mail that comes in to Inbox gets collected no problem.)

    If I click on the offline button then it will – as expected – ask if I want to download messages before going offline. If I say ‘Download Now’ it will then download a FEW messages from a random selection of folders!

    I’ve done this sort of thing before and never had a problem. Any ideas what I’m doing wrong??
    All I want TB to do is connect to the server and download everything!

  4. Lisataf
    December 5, 2019 at 12:48 am Reply

    68.3.0 on Win 10 – Cannot add contacts from an email. Same thing occur if I launch the application in Mozilla Safe Mode?

  5. apetube
    December 7, 2019 at 4:39 pm Reply

    Network Solutions requires customers to enable SMTP Authentication in order to send mail from email programs installed on your computer such as Outlook , Outlook Express, and Eudora .

  6. Paultaf
    December 11, 2019 at 4:42 am Reply

    Installed TB 68.3.0 US version, went offline and created an email and saved it as a template, but there is no Template folder and the template disappeared. Where can I find this document?

  7. Marktaf
    December 13, 2019 at 3:38 am Reply

    I am using the latest version of the add-on. I can see that it is working by looking at the contents of the mail.accountmanager.accounts key with the config editor. I always upgrade Thunderbird whenever there is an update, but I have no way of knowing what version I had prior to 68.3.1

    The problem is related to the news accounts. I can move other accounts up and down without any problem. It would appear that Thunderbird is ignoring the account order for Blogs and News Feeds

  8. Marytaf
    December 13, 2019 at 7:41 am Reply

    Is there any chance the extremely popular add-on ‘CustomizeMyBird’ can be resurrected and made compatible for TB68+?

    It’s my understanding that the developer (Aris-t2) has pulled the add-on from the ATN (addons.thunderbird.net) list. He has however provided the add-on information on this site: https://github.com/Aris-t2/CustomizeMyBird for people to use it the best they can using CSS.

    He (Aris-t2) states (on the above linked website): “‘CustomizeMyBird’ will not be updated for Thunderbird 68+, please don’t ask for it. I’m done with Mozilla and their lies about keeping the “old” add-on eco system in Thunderbird. This add-on will not be rewritten by me again! Use CustomCSSforTb instead.”

    I’m wondering if this wonderful and [once] extremely popular add-on (that is much needed to enhance the looks of TB) can be adopted by another developer and made compatible for TB68+? Is this something that one of the add-on extension team members could undertake?

    Thanks for all you do. I appreciate it…

  9. Lisataf
    December 20, 2019 at 3:29 am Reply

    No way to prevent blank subject in TB 68.3.x?
    Is there any way of preventing someone from sending out emails where the subject line is blank? Getting these types of emails from people make it a royal pain trying to find them in a mailbox by simply glancing through the headers.

  10. Barbara
    December 25, 2019 at 11:04 pm Reply

    Wonderful article! That is the kind of information that are supposed to be shared around the net.
    Shame on the search engines for no longer positioning this put up higher!
    Thank you =)

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