Outlook 2010 cannot connect to pop.gmail.com on port 995

Not open for further replies.

Joseph M. Guerra

I am trying to migrate my Outlook 2007 .pst file from a Vista computer to a Windows 7 computer running Outlook 2010. All the account settings are the same.

Pop: pop.gmail.com
SMTP: smtp.gmail.com
Server requires a secure connection (SSL); port number " 465" in the " Outgoing mail (SMTP)" .
Server requires a secure connection (SSL); port number " 995' in the " Incoming mail (POP3)" .

I have been on the phone with my ISP twice for 2 hours each and they say the settings are correct.

I tend to agree since I get the following error immediately :

Task 'jmguerra@clear.net - Receiving' reported error (0x80042108) : 'Outlook cannot connect to your incoming (POP3) e-mail server. If you continue to receive this message, contact your server administrator or Internet service provider (ISP).'

as if Windows is blocking the connect and never tries to connect via the network.

I have tried to telnet to the server and get a connection error also.

telnet pop.gmail.com 995
I have added Firewall rules for Outlook.exe to allow all incoming and outgoing on all ports and all protocols and still get the error.


I have a similar situation with Outlook 2007 and Windows 7. My details are below.

Note that I was able to work around this problem by resolving the POP server IP address (outside of Outlook) and using the IP address instead of the DNS name in the Outlook server setup page. Why don't you try that and see if it helps. However that is not the solution that either of us is looking for.

Our business's LAN has a Windows 2003 server domain controller which provides AD-integrated DNS. We have been running XP workstations for many years, and for the past year using Outlook 2007 on XP with no problems. We do not use Exchange server. Our email accounts are hosted by an off-site server (not gmail) which we access from Outlook via POP3. Up until now everything has been working well.

Last month we acquired a batch of notebook PCs with Windows 7. We set them up in the domain, installed Office 2007, and almost everything is running perfectly. Our problem is that Outlook 2007 cannot connect to our extenal POP3 server, or the SMTP server. When I turn on Outlook logging, it shows failure in its attempt to connect to the POP server. The email account in Outlook is set up exactly like it is on the other XP PCs.

The really interesting part is that in the Outlook " Internet email account settings" property sheet, if I enter the IPv4 ADDRESS of the POP3 server (xxx.xxx.xxx.xxx) instead of the DNS NAME of the server (mail.xxx.com), Outlook works fine.

Everything else on the Windows 7 notebook seems to be using DNS correctly. IE can find websites, nslookup resolves my POP3 server name, and I ran NETMON on my DNS server and it receives and replies to Outlook's DNS requests from the Windows 7 notebook.

On the notebook, I disabled the Windows Firewall and the (Symantec) Anti-virus software. Note that our business LAN goes throug ISA Server 2004. I created an ISA firewall policy to allow everything outbound from the notebook PC, but when I use ISA monitor, it does not log any traffic from the notebook.

I took the notebook home and ran it on my home LAN, and Outlook worked fine. I also brought the laptop into another AD-managed Windows Server 2008 LAN (which does not use ISA Server), and Outlook worked fine.

Can anyone suggest what in our business network could be causing Outlook 2007 under Windows 7 to be unable to connect to a POP server?

Sally Tang


Have you installed any software or updates recently? Temporarilly disable the firewall and antivirus software on your computer, such as Norton.

If you installed any Office update, uninstall it from control panel > Programs and Features.

You can also re-add the POP3 account and test the results again. Please make sure the outging and incoming email servers are right. Check the checkbox " My outgoing server (SMTP) requires authentication" in " Outgoing Server" tab and use the same authentication as it's for the incoming server.

Sally Tang

Joseph M. Guerra

I have uninstalled my McAfee antivirus software.

I have turned off the Windows Firewall.

I have never installed any Office update.

I have deleted and readded the accounts, and the profiles containing the accounts.

I have made sure the outgoing and incoming email servers are correct.

I have checked the Outgoing server tab has " My outgoing server requires authentication" box, and use the same settings as for the incoming server.

None of this stops Windows from preventing the connect in a fraction of a second, as if Windows itself is blocking the connect.

If I try to telnet to the server on port 995

telnet pop.gmail.com 995

windows blocks the connects, which explains why Outlook is failing.

If I try the same telnet on the older Vista computer, where Outlook works, the telnet works and produces a blank screen.

If I boot in safe mode on the Windows 7 computer and try the telnet, it works.

Why does the telnet to pop.gmail.com on port 995 fail if the system is not in Safe Mode? How can I make Windows 7 unblock port 995?

Sally Tang


Click Start, in the Search box, type windows firewall. Open Windows Firewall, click Allow Programs from the left panel. Then, you can change windows firewall to allow your port there.

Sally Tang

Joseph M. Guerra

I would like to try your recommendation you noted as below :

The really interesting part is that in the Outlook " Internet email account settings" property sheet, if I enter the IPv4 ADDRESS of the POP3 server (xxx.xxx.xxx.xxx) instead of the DNS NAME of the server (mail.xxx.com), Outlook works fine.

Do I change the POP3 server definition on the email account setup / change page? I brought up that page and it is labeled " Internet Email Account Settings" so I am sure that is what you are referring to.

If I ping pop.gmail.com I get the following error :

Microsoft Windows [Version 6.1.7600]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Windows\system32>ping pop.gmail.com

Pinging pop.gmail.com [] with 32 bytes of data:
General failure.
General failure.
General failure.
General failure.

If I ping the IP address, I get the following error :


Pinging with 32 bytes of data:
General failure.
General failure.
General failure.
General failure.

Ping statistics for
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),

How can I change Windows to not give a " General Failure" error when I access that server or IP address?

Joseph M. Guerra

I have gone to the page to

" Allow Programs to communicate through Windows Firewall" and

" Allow another Program" and

added Outlook.exe. Unfortunately, Windows still blocks that program.

Is there anyway to paste a screen shot in a reply to your suggestion?
Not open for further replies.
Similar threads
Thread starter Title Forum Replies Date
Mark Foley Cannot enable add-in in outlook 2010 Using Outlook 0
S Outlook 2010 Cannot Open Attachments Using Outlook 14
K Cannot consistently drag and drop .msg files into Outlook 2010 Using Outlook 0
H Outlook 2010: Cannot start!, please help me! Using Outlook 3
W Cannot delete Outlook 2010 data file Using Outlook 1
K Outlook 2010 'cannot send on behalf of' when changing calendar apointment Exchange Server Administration 0
S Outlook 2010: Cannot save forms templates to folder list Using Outlook 4
R Shared Inbox Outlook 2010 - one client cannot access Exchange Server Administration 1
P Outlook 2010 - Cannot archieve emails Using Outlook 1
J Post SP3 upgrade - outlook 2003/2010 clients cannot connect Using Outlook 1
A outlook 2010, windows 7, exchange server: "The action cannot be completed. The connection to Micro Using Outlook 1
F I cannot highlight text in Microsoft Outlook 2010 e-mails, and copy/paste to the body of another e-m Using Outlook 3
M I cannot read any foreign language mails in outlook 2010 (Encoding issue) Using Outlook 1
A cannot connect outlook 2007 clients to exchange 2010 Exchange Server Administration 3
D Cannot read greek fonts in plain text messages - outlook 2010 Using Outlook 4
D Cannot add second pst under Outlook 2010 Using Outlook 1
B Outlook 2010 font changes on message for new email. Cannot read it on the screen Using Outlook 2
W Cannot Search Outlook Folders - Office 2010 Installed on Server 2008 R2 Using Outlook 2
B Outlook 2010 cannot get past Loading Profile when starting Using Outlook 3
G Outlook 2010: Cannot Open Item Error; and Operation Failed Error when replying!! Using Outlook 2
L Cannot change my setting on Microsoft Outlook 2010 from IMAP to POP. Using Outlook 1
W Cannot Search Outlook Folders - Office 2010 Installed on Server 2008 R2 Using Outlook 3
L Cannot open Outlook 2010 Student, operating system Windows XP Using Outlook 6
T Outlook 2010 / SBS 2010 - User cannot view emails moved to a folder that was previously imported fro Using Outlook 6
T Cannot open hyperlinks inside e-mails... (outlook 2010) Using Outlook 3
B Outlook 2010. Cannot access my Contacts from clicking 'To' butto to find an email send address. Using Outlook 2
R Outlook 2010 cached mode cannot see GAL but Outlook 2007 can via Exchange 2010 Using Outlook 2
G Using Outlook 2010, we can send Emails but cannot receive any through Outlook Using Outlook 2
D Outlook 2010 cannot receive email but can send email normally Using Outlook 6
S Cannot Open Attachments Outlook 2010 Using Outlook 3
S Exchange 2010 Autodiscover Problems, cannot connect Outlook clients using Autodiscover / Outlook Any Exchange Server Administration 4
U 'Cannot Start Microsoft Outlook' when trying to start oullok 2010 Using Outlook 2
D When adding a new Outlook 2010 profile, I get the error code 0x80040605 and cannot add an email acco Using Outlook 5
S Cannot find contacts in outlook 2010 even though they are there! Using Outlook 6
L Outlook 2010: cannot insert tables or illustrations Using Outlook 14
L Cannot preview office attachements in Outlook 2010 Using Outlook 4
J Cannot start Microsoft Outlook 2010 a second time Using Outlook 4
F Outlook 2010 Incoming Meeting Requests display as text / code, cannot accept these invites (includes Using Outlook 4
J Cannot Open Outlook 2010 Using Outlook 4
B Cannot configure email in Outlook 2010 with Windows 7 Using Outlook 1
M Outlook 2010 cannot find suggested times with Exchange 2007. Using Outlook 5
A In Outlook 2010, I cannot preview Work or Excel attachments, even though all of the previewing optio Using Outlook 9
A Outlook 2010 cannot reserve a resource on Exchange 2003 anymore Using Outlook 3
G Installed Office 2010 for home and business. All work but OutLook. It will not load. Error screen says that it cannot connect to the email. Using Outlook 2
J Outlook 2010 Access Denied. Cannot open pst file‏ Using Outlook 6
B I am using MS outlook 2010, but as of now i cannot sent email ? It just in my outbox folder. but i can receive email? Using Outlook 2
S Exch 2010, Outlook 2010 or 2007 cannot retreive free/busy schedule Exchange Server Administration 2
T Exchange 2010 public folders cannot be opened from Outlook, but can from OWA Exchange Server Administration 2
R Cannot open Outlook 2010 window__ Using Outlook 11
K I cannot get the Outlook pfbackup to work with Outlook 2010 worked great with 2007 Using Outlook 2

Similar threads