Outlook 2019 Certificate error

Happydaze

New Member
Outlook version
Outlook 2019 64-bit
Email Account
POP3
I am trying to use Outlook 2019 to access POP3 email . The domain I am connecting to is home.3b.co.uk

I used an earlier version of Outlook until recently which did not seem to have any security options set.

I am now using Outlook 2019. After some experimentation I have a arrived at settings that allow me to send and receive emails.

However the error I receive now pops up frequently. The text of the error is “The Server you are connected to is using a security certificate that cannot be verified”

The settings I am using are:-

POP3 mail Incoming

Server: mail.home.3b.co.uk

Port: 995

Encryption method: SSL/TLS

Require login using SPA unchecked





Outgoing

Server: mail.home.3b.co.uk

Port: 587

Encryption method: Auto

Require login using SPA unchecked




Can anyone suggest how I might overcome this error?

Is there any way I can get a log to see what is going on when sending/receiving mail?
 

Diane Poremsky

Senior Member
Outlook version
Outlook 2016 32 bit
Email Account
Office 365 Exchange
However the error I receive now pops up frequently. The text of the error is “The Server you are connected to is using a security certificate that cannot be verified”
Check the certificate - what domain is it issued to?
See this article for how to fix it -
 

Happydaze

New Member
Outlook version
Outlook 2019 64-bit
Email Account
POP3
Check the certificate - what domain is it issued to?
See this article for how to fix it -
Diane, I'm so grateful to you for your help. I checked out the certifcate and the mail servers were totally different from what I had setup. I changed them to reflect the certificate and now the problem has gone away. Thank you.
 
Similar threads
Thread starter Title Forum Replies Date
J Is it no longer possible to suppress Outlook 2019 Invalid Certificate name mismatch security alert via Registry? Using Outlook 1
C All Gmails don't show in Outlook 2019 Using Outlook 0
witzker Macro to move @domain.xx of a Spammail to Blacklist in Outlook 2019 Outlook VBA and Custom Forms 4
pcunite Outlook 2019/O365 Build 13127.20408 errors when using MAPI calls Using Outlook 1
T Changing Sent Items location in Outlook 2019 Using Outlook 0
J How do I disable advertising in Outlook 2019? Using Outlook 10
R Outlook 2019 Using Outlook 0
C Outlook 2016/2019 hangs after being open for an extended period Using Outlook 4
F outlook.com Exchane Server corrupts data Since September 2019 Using Outlook.com accounts in Outlook 6
J How to open OST file in Outlook 2019 & 2016 Using Outlook 1
L Outlook 2019 MAC sync error after working for 4 hours Using Outlook 1
A Outlook 2019 having issues with 'people search' and not making suggestions in email To: etc Using Outlook 12
T How to Export mailbox from Outlook 2019 to MBOX format? Using Outlook 1
W Outlook 2019, Outlook Proplus v1808/1809 Unexpected Calendar Cache Using Outlook 4
I Outlook 2003 shows html code when To: field is empty Using Outlook 3
O The Outlook API wrongfully shows an outlook folder to have zero sub-folders Outlook VBA and Custom Forms 1
O The Outlook API wrongfully shows an outlook folder to have zero sub-folders Outlook VBA and Custom Forms 2
D Outlook 2007 vs. Outlook 2010 -- ToDo Bar Using Outlook 0
U Outlook 2016 Outlook 2016 sender name Using Outlook 1
T Compuserve, Yahoo, Oath2 and Outlook 2013 Using Outlook 4
E Work uses live accounts for emails for all employees. Can we use the outlook calendar to give the employees an universal work schedule calendar? Using Outlook 1
D Outlook 2007 on 365 Using Outlook.com accounts in Outlook 2
S Macro for other actions - Outlook 2007 Outlook VBA and Custom Forms 16
P outlook 2008 search box criteria couldn't be saved Using Outlook 2
C Outlook with Office365 - search across account, by date rate, in multiple folders - how? Using Outlook 1
D Outlook 2010 Outlook in Windows 10 keeps asking for user name and password repeatedly Using Outlook 14
S Outlook mail adressing stops after first match in GAL Using Outlook 0
A Apply Selected Emails to outlook rules and Run Rules Using Outlook 5
S Outlook (2016 32bit; Gmail IMAP) - Save sent message to Outllook Folder Outlook VBA and Custom Forms 0
L Unable to Sync Web/Android MS To Do with Windows Outlook Tasks Using Outlook 3
S Macro to move “Re:” & “FWD:” email recieved the shared inbox to a subfolder in outlook Outlook VBA and Custom Forms 0
S Outlook Macro to send auto acknowledge mail only to new mails received to a specific shared inbox Outlook VBA and Custom Forms 0
S Outlook Macro to move reply mail based on the key word in the subjectline Outlook VBA and Custom Forms 0
B Outlook Calendar not coming down from cloud Using Outlook 2
Terry Sullivan Sender's Name Doesn't Appear in the From Field on Outlook 365/IMAP Using Outlook 2
GregS Outlook 2016 Can I disable the Outlook Outbox? Using Outlook 2
P Outlook pst file is too huge with POP3. How to save more space? Using Outlook 4
D Outlook Contacts Notes Field Photos to Smartphone Using Outlook 0
Paula S. Outlook 2013 won't recognize new password Using Outlook 4
J Want to learn VBA Macros for Outlook. What book can you recommend? Outlook VBA and Custom Forms 2
A Backup Email Accounts On OutLook For Mac 2016 (Microsoft 365 subscription version) Using Outlook 0
J Time Zone Issues - Outlook Calendar and Webcal Feed Using Outlook 8
J Are the underlined letters in Outlook Reminders window supposed to work? Using Outlook 0
M Office 2016 Outlook is forgetting passwords Using Outlook 15
G How to add a folder shortcut to outlook quick access toolbar? Using Outlook 6
W Outlook WAS facebook but there is no info for old accounts Using Outlook 0
E Can one still buy Outlook (or Office) 2016? Using Outlook 6
G Add to Outlook Contacts - Point to non-default contacts folder Using Outlook 0
E Outlook view grouping keeps changing Using Outlook 3
Wayne Outlook locks up when opening "Manage Rules & Alerts" Using Outlook 7

Similar threads

Top