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Here is a complete **A–Z guide** for setting up an email account in **Mozilla Thunderbird**:

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1. 1. 🦅 Mozilla Thunderbird — Complete Email Account Setup (A to Z)

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1. 1. 1. **A — Open Thunderbird & Access Account Settings**

Launch Mozilla Thunderbird. For a new install, you will be automatically prompted to enter your existing email account details upon first launch. For an existing install, navigate via **☰ Menu → New Account → Existing Email**. [Mozilla Support](https://support.mozilla.org/en-US/kb/automatic-account-configuration)

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1. 1. 1. **B — Gather Required Information First**

Before starting, have ready: - Your **full email address** (e.g., you@example.com) - Your **password** - Your **incoming server** (IMAP or POP3) hostname & port - Your **outgoing server** (SMTP) hostname & port - **SSL/TLS** or **STARTTLS** encryption type

These details can be supplied by your email provider. [Mozilla Support](https://support.mozilla.org/en-US/kb/manual-account-configuration)

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1. 1. 1. **C — Add a New Mail Account**

At the bottom of the left pane in Account Settings, click the **Account Actions** button and select **Add Mail Account…** [Mozilla Support](https://support.mozilla.org/en-US/kb/manual-account-configuration)

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1. 1. 1. **D — Enter Basic Account Details**

In the Mail Account Setup dialog box: - **Your Name** — the name that appears on the "From" line in outgoing messages - **Email Address** — your full email address - **Password** — your email account password [Microsoft Support](https://support.microsoft.com/en-us/topic/set-up-email-in-mozilla-thunderbird-8-0-f4726a9e-64d3-4494-9260-5762597fd1a6)

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1. 1. 1. **E — Auto-Configuration Attempt**

Click **Continue**. Thunderbird will check if your webmail provider is available in its database and provide available configuration options. IMAP will be the preferred setting in most cases. [Mozilla Support](https://support.mozilla.org/en-US/kb/automatic-account-configuration)

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1. 1. 1. **F — Manual Configuration (if needed)**

If auto-detection fails or you have a non-standard configuration, press **Manual Configuration** and edit the server names, ports, and IMAP/POP settings manually. [Mozilla Support](https://support.mozilla.org/en-US/kb/manual-account-configuration)

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1. 1. 1. **G — Choose Incoming Protocol: IMAP vs POP3**

IMAP (the more modern protocol) allows you to store messages on the mail server and on your local machine at the same time. The POP protocol only allows messages to be stored locally. [Mozilla Support](https://support.mozilla.org/en-US/kb/automatic-account-configuration)

Common IMAP settings: | Field | Value | |---|---| | Protocol | IMAP | | Port | 993 | | SSL | SSL/TLS |

Common POP3 settings: | Field | Value | |---|---| | Protocol | POP3 | | Port | 995 | | SSL | SSL/TLS |

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1. 1. 1. **H — Configure Outgoing (SMTP) Server**

In the Server hostname text box next to **Outgoing**, enter your SMTP server name. [Microsoft Support](https://support.microsoft.com/en-us/topic/set-up-email-in-mozilla-thunderbird-8-0-f4726a9e-64d3-4494-9260-5762597fd1a6)

Common SMTP settings: | Field | Value | |---|---| | Port | 465 (SSL) or 587 (STARTTLS) | | Authentication | Normal password or OAuth2 |

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1. 1. 1. **I — Set Username**

Set the username to your **full email address** (e.g., username@yourdomain.com). [SiteGround](https://www.siteground.com/tutorials/email/mozilla-thunderbird/)

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1. 1. 1. **J — Test Your Settings**

Click **Re-test** to test your manual settings; there should be a quick response indicating the settings are valid. [Mozilla Support](https://support.mozilla.org/en-US/kb/manual-account-configuration)

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1. 1. 1. **K — Authentication Method**

For modern providers like Gmail, Outlook, Yahoo, and AOL, **OAuth2** is used. An OAuth2 window may pop up for modern Outlook accounts — approve the permissions when prompted. [TechyDen](https://techyden.com/thunderbird-email-client-configuration/)

For app passwords (e.g., with 2FA enabled): Go to your Microsoft Account Security settings, find **App passwords** under "Additional security," generate one, and use it in Thunderbird instead of your regular password. [TechyDen](https://techyden.com/thunderbird-email-client-configuration/)

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1. 1. 1. **L — Complete Account Creation**

Once you have selected your protocol, click **Done**. Thunderbird will begin to retrieve your folders and messages from your provider — a progress bar will be visible in the lower right of your screen. [Mozilla Support](https://support.mozilla.org/en-US/kb/automatic-account-configuration)

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1. 1. 1. **M — Account Identity Settings**

Under Account Settings, you can configure: - **Account name** — appears in the folder pane - **Your Name** — shown in the From field - **Email Address** — appears when sending messages - **Reply-to Address** — if replies should go to a different address - **Organization** — optional field attached to outgoing messages - **Signature text** — appended to your messages [Mozilla Support](https://support.mozilla.org/en-US/kb/configuration-options-accounts)

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1. 1. 1. **N — Server Settings & Message Checking**

You can configure Thunderbird to: - **Check for new messages at startup** - **Check for new messages every __ minutes** (set a time interval) - **Allow immediate server notifications** (IMAP IDLE command) so new messages arrive instantly without polling [Mozilla Support](https://support.mozilla.org/en-US/kb/configuration-options-accounts)

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1. 1. 1. **O — POP3 Tip: Keep Messages on Server**

If using a POP3 incoming server, it's a good idea to select **Leave messages on the server** so a copy of retrieved messages is kept on the server and accessible from other email applications. [Microsoft Support](https://support.microsoft.com/en-us/topic/set-up-email-in-mozilla-thunderbird-8-0-f4726a9e-64d3-4494-9260-5762597fd1a6)

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1. 1. 1. **P — Deleted Messages Behavior**

Under **When I delete a message** (IMAP accounts), you can change the default behavior — either moving it to the Trash folder or moving it to a different folder of your choice. [Mozilla Support](https://support.mozilla.org/en-US/kb/configuration-options-accounts)

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1. 1. 1. **Q — Sent, Drafts & Archive Folders**

You can customize: - **Keep draft messages in** — where drafts are saved - **Keep message archives in** — create a folder to hold an archive of your messages [Mozilla Support](https://support.mozilla.org/en-US/kb/configuration-options-accounts)

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1. 1. 1. **R — Automatic CC / BCC**

You can configure Thunderbird to automatically add addresses to the **Cc** or **Bcc** fields on every message sent. Use commas to separate multiple addresses. [Mozilla Support](https://support.mozilla.org/en-US/kb/configuration-options-accounts)

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1. 1. 1. **S — vCard (Virtual Business Card)**

Enable **Attach my vCard to messages** and click **Edit Card** to enter your vCard data. It will then be attached to all messages you send from that identity. [Mozilla Support](https://support.mozilla.org/en-US/kb/configuration-options-accounts)

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1. 1. 1. **T — Multiple Identities per Account**

In Thunderbird, you can set up more than one identity per account. Click **Manage Identities** to set up and manage additional identities — each with its own name, address, signature, and outgoing server. [Mozilla Support](https://support.mozilla.org/en-US/kb/configuration-options-accounts)

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1. 1. 1. **U — Multiple Outgoing (SMTP) Servers**

If you have multiple outgoing servers set up, use the **Outgoing Server** menu to choose which server to use with each identity. [Mozilla Support](https://support.mozilla.org/en-US/kb/configuration-options-accounts)

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1. 1. 1. **V — Folder Subscriptions (IMAP)**

If folders are missing after setup, make sure **Show All Folders** and **Subscribe** settings are correct inside Thunderbird. [TechyDen](https://techyden.com/thunderbird-email-client-configuration/)

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1. 1. 1. **W — Troubleshooting Common Errors**

Common issues and fixes: - **IMAP connection fails** — check your app password, enable IMAP in your webmail settings, and update Thunderbird to the latest version - **Authentication issues** — double-check 2FA/app password use - **SSL/TLS errors** — ensure correct ports and encryption are entered and confirm your internet connection is stable [TechyDen](https://techyden.com/thunderbird-email-client-configuration/)

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1. 1. 1. **X — Security: Encryption Options**

Use **SSL/TLS** on port 993 (IMAP) and 465 (SMTP) for the most secure connections. Use **STARTTLS** on port 587 as an alternative for outgoing mail. Never use unencrypted connections (port 25/143) for personal accounts.

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1. 1. 1. **Y — Provider-Specific Quick Reference**

| Provider | IMAP Server | SMTP Server | IMAP Port | SMTP Port | |---|---|---|---|---| | Gmail | imap.gmail.com | smtp.gmail.com | 993 | 465/587 | | Outlook/Hotmail | outlook.office365.com | smtp.office365.com | 993 | 587 | | Yahoo | imap.mail.yahoo.com | smtp.mail.yahoo.com | 993 | 465 | | iCloud | imap.mail.me.com | smtp.mail.me.com | 993 | 587 |

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1. 1. 1. **Z — You're All Set! 🎉**

After saving these changes you should be able to send and receive emails. Other aspects of account configuration are optional and self-explanatory. [Mozilla Support](https://support.mozilla.org/en-US/kb/manual-account-configuration)

You can always revisit settings via **☰ Menu → Account Settings** at any time.

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> 💡 **Tip:** For the most up-to-date configuration details specific to your email provider, always check their official support documentation, as server settings can occasionally change.

Dear all, good evening With Thunderbirb for Android is not possible to read this massage. All other email clients has no problem. I attached picture to see the problem.

Within my Outlook.com email account i have an archive folder with 36 sub folders.

In the Thunderbird app for Android only 2 of these sub folders are visible.

I cannot find any setting that to resolve this issue

Pixel 8a, 256GB/120GB free, Android 16, Thunderbird v16.1 Thunderbird stopped sending and receiving emails after several months. My storage is not full. I also deleted messages to be sure. I checked my android settings as indictated in the troubleshooting guides and have been unable to resolve problem. I have it set to automatically download emails. Manually checking emails by using the "refresh" button does not work either.

Thunderbird for Android: When sending a message, the copy moved to the Sent folder is not marked as "read" after moving. Messages sent from the Android client and subsequently auto-filed into "Sent" or "Sent Mail" are still marked as "unread" after the move. They should be marked as "read" as part of the move, just like with the Windows client. I've searched the various Settings and I can't find any related setting.

Thank you for your attention to this matter,

   Scott Lindley

How do I make Thunderbird the default app on my Android 14 phone? It is not in default apps or in the settings menu in Thunderbird on in Apps under the Android settings.

Recently started using Thunderbird on Pixel 9a, Android v16. Just installed newest update to OS. Emails do not sync properly. New messages that are in my Gmail do not show up in Thunderbird until I do a manual update. This is true for all folders, but especially trash and spam. For example, messages that appeared in my Gmail trash folder this morning did not show up in Thunderbird trash at 7 pm MST this evening. When I did a manual sync, 10 messages from this morning suddenly showed up in Thunderbird. In Thunderbird settings, Background sync is set for Always. What do I need to do?

I have a visual impairment. Iwould like to use Thunderbird for Android but after installation AND BEFORE CONFIGURING ANY EMAIL ACCOUNT, I need to play with it (specially settings), so I can check whether I can use it or not. Things like font size, theme and colors are crucial. But Thunderbird does not allow this. It requires an email account. It is a bit ridiculous, I don-t even know if I'll be able to use it!!!

Can anyone please help?

Thank you so much.

I still don't get links in my emails I have tried everything in the forum but no luck I actually get the expanded version. This is only the case with the android app

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Hi All,

I am installing Thunderbird from official GitHub releases and I am wondering why I am getting info from Obtainium that thunderbird-14.0 is something called "pseudo-release".

Can someone explain me this term regarding GitHub apk files? Is it OK to install it?

Regards, Timo

I installed MThunderbird on my Android phone today, using a QR Code to import settings. Receiving messages works perfectly, while sending messages is a mission impossible. I keep getting the message when sending: "Authentificanion failed". I have the same settings on my computer, and Thunderbird works normally, both sending and receiving messages. I don't know where the problem could be, so please help!

I'm also attaching a screenshot of the outgoing server from the desktop computer, which is also set up on the mobile application.

Hi,

On my desktop, thunderbird does an awesome job cutting spam. While on the mobile its terrible, not just are most spam mails coming thru but some legit emails are getting flagged. Is there some way to make it mimic the desktop.

Thanks in advance

Installed mobile android app. Manual configuration as other methods did not work. Email received and all well but the Sent folder contains only recently sent mail, which then disappears leaving the folder empty.

One piece of advice is to check a folder called " copies .... " like repair on Win 10 but neither exist on the mobile app. Any guidance welcome.

My primary email (which has been used as the login email for many, many accounts) is on an email server which only supports TLS 1.0. I have contacted the sys admin before and was told they are planning to upgrade "some day" but that was over two years ago so I'm not optimistic.

I've gotten Thunderbird desktop to work with the account by downgrading the minimum TLS level. Recently, I've started using Thunderbird mobile on my phone (as the latest Gmail app update stopped working with my email account -- no doubt for the same reason) and it was working fine but I just bought a new phone and transferred my apps to it. I set Thunderbird mobile up exactly the same way as I did on my old phone, but it is refusing to sign in, citing a protocol problem (so I'm suspecting the stupid TLS 1.0 issue). I don't understand why this worked on my old phone but not on the new one -- the old one is on an earlier version of Android -- could that be it? (Both versions of Thunderbird mobile say they are version 11.1).

So, what can I do about this? There doesn't seem to be any way to downgrade the TLS version on the mobile software. Spending the next two months going through every account I've opened on the internet and changing the associated email account probably isn't as fun as it sounds and I'm inclined to not try finding out. Persuading my email provider to move into the 21st century is probably easier said than done. If I can't change Thunderbird mobile to fix this, does anyone know of another Android email app which would work? Not being able to access my emails on my cell phone would be a significant issue for me.