Email account works on thunderbird not Outlook

Not open for further replies.


New Member
Outlook version
Outlook 2016 64 bit
Email Account
I am helping my sister who hooks up to her website to get Imap mail

The connection works on Thunderbird but not on outlook
I can connect to a reseller hosted domain IMAP account using Thunderbird but NOT with Outlook and my older sister wants to use Outlook.

Using Windows 10 and Outlook 365

I have tried turning off the Router/Windows firewalls

Thunderbird Setup

server type : IMAP Mail server
Servername :
user name :
Port 143

Connection Security STARTTLS
Authentication :Normal

servername :
Connection Security STARTTLS
Authentication :Normal
UserName :
Port : 587


Non-SSL Settings
(This is NOT recommended.)
Password: Use the email account’s password.
Incoming Server:
IMAP Port: 143
Outgoing Server:
SMTP Port: 26
Authentication is required for IMAP, POP3, and SMTP.


SSL Settings

I have tried those as well


email address :

incoming mail
server :
port 143
Encryption : STARTSLS
SPA – No

Outgoing Mail
server :
port 26 ( and tried 587)
Encryption : STARTSLS
SPA – No

Thank Diana,
Nothing seems to work now.
How do I remove all the existing outlook files (pst??)as they seem corrupted
Close Outlook
Locate the pst files - usually in Documents\Outlook Files unless you created them in an older version of Outlook - then they might be in %localappdata%\microsoft\outlook.
Rename the pst files - you can add 'old' the the end of the file name.
Restart Outlook or make a new profile.
I have fixed the PST issue.
I can now connect to her email using Outlook and it was 993 thank-you
BUT my sister when I test it her login works but the test message is not sent.
Both my sister and I have windows 10/64 bit running office 365 Outlook.
I have got her doing a full repair on Office.
thank you for your advice
BUT my sister when I test it her login works but the test message is not sent.
In the Account settings, double click on the account to open it, click More Settings. On the Outgoing tab, set it to use the same login as the incoming server. On advanced tab, you might need to use port 465 /SSl or 587/TLS.
Hi Diane,
You were right, Even though I had opened up the ports and marked outlook as safe, the AVG firewall was still not working. I de-installed firewall and it worked.!
Thank-you for your time
Not open for further replies.
Similar threads
Thread starter Title Forum Replies Date
H Two accounts, Junk email filter only works on one account, office 2010, pop3 Using Outlook 5
A How Do I Setup My Optonline.Net Email Account? Outlook VBA and Custom Forms 0
D multiple email accounts - why do I have to choose the "from" account address?? Using Outlook 2
C Outlook 2007 Removing then adding account restores junk email processing Using Outlook 0
M How to setup outlook after importing old account information - Entering email account info creates with "(1)" after the account! Using Outlook 1
R Auto display of new email does not work on non-default account Outlook VBA and Custom Forms 0
O Email not leaving Outbox when using Excel VBA to sync Outlook account Outlook VBA and Custom Forms 4
Marc2019 Need help please! Cannot Setup my outlook email account on my Mac Outlook 2011 Using accounts in Outlook 2
A Created a new user account and the local account cannot see email Using Outlook 3
T Cannot connect to main BT email account, sub accts okay Using Outlook 0
D Adding Enterprise Exchange Email Account to Outlook Prevents Sending via Account Using accounts in Outlook 10
X Unable to send an email from one account to another on same PC Using Outlook 2
M Inbox not showing to deliver new email to this account Using Outlook 3
V Autocomplete not working on new email account Using Outlook 4
H Select Specific Account When Sending Email, Based on Current Folder Outlook VBA and Custom Forms 1
R Unable to install without email account Using Outlook 4
E Unable to open Outlook 2010 after adding new email account Using Outlook 4
I Backup email account information Using Outlook 2
F Should a new email account also create new contacts Using Outlook 2
H Change Default Email Account Using VBA Outlook VBA and Custom Forms 5
mrje1 Outlook 2016 Manual Email Account Setup, what is the Office 365 option etc., and Crashes Using Outlook 0
D Mysterious email sent from my account Using Outlook 4
I Application_NewMailEx for a specific Email account Outlook VBA and Custom Forms 4
J Unable to link email messages in BCM using a single microsoft office 365 account in outlook 2013 BCM (Business Contact Manager) 1
J Converted .ost to .pst: Want to Import and Reconnect with IMAP Email Account Using Outlook 2
Diane Poremsky Assign an Email Account to an Outlook Contact Using Outlook 0
T Can't send email through connected account ( - goes to Drafts folder Using accounts in Outlook 3
M Cancelled Email Account Using Outlook 3
M1ck53 Email account gone Using Outlook 5
B Email address not showing up in account settings Using Outlook 3
H How to configure “Send As” email in Office 365 Account? Exchange Server Administration 10
R Cant reinstall POP email account Using Outlook 2
T using IMAP with a single email account on two or more computers Using Outlook 3
R Outlook 2010 Send from other email address uses account address instead Using Outlook 1
jw12341243 Outgoing email on deleted account Using Outlook 7
V Configuring a new IMAP email account in Outlook 2007 Using Outlook 4
I How to prevent exchange email account from sending emails in Outlook Using Outlook 4
N Deleted my email account - how to recover it Using Outlook 1
S Outlook 2013. Adding office 365 email account causes 'The operation failed' Using Outlook 2
L Data file not associated with an email account and can't be deleted Using Outlook 15
G How to make your IMAP email your default data account in Outlook 2007 Using Outlook 17
D Save sent email in second account not default account? Using Outlook 1
R How many seconds usually takes an email to get to an outlook account? Using Outlook 0
G 3rd email account shows 15 emails but nothing there? Using Outlook 2
C Multiple domains into one email account Using Outlook 1
S Wrong email account displayed in folders Using Outlook 3
H Popup asks for password of an email account Using Outlook 1
S my account cant receive email... Using Outlook 1

Similar threads