Free Microsoft Outlook Resources & Whitepapers

Fix for "... security certificate that cannot be verified"

Outlook 2007 up-to-date

For the last year, I have been getting this warning: "The server you are connected to is using a
security certificate that cannot be verified". The warning occurs randomly, meaning it comes up two
or three times a day thus hours may go by w/o a warning.

The Certificate is from ATT, thus I would believe that ATT and MS would have agreed to an acceptable
Certificate.

This is annoying as I must respond to it.

Any thoughts as to a Fix is greatly appreciated!

EagleOne


Post your answer or comment

comments powered by Disqus
Here is the next thing that pops up after I reloaded windows 7

Every time I starts the Outlook I get the message that contains the following information. How can I stop it from coming up? If I say "yes" to the message the program will just go on. I have even followed the prompt after clicking the View Certificate..." button to install the certificate but it hasn't made any difference.

"The server you are connected to is using a security certificate that cannot be verified. The target principal name is incorrect. Do you want to continue using this server?"

I use my AOL email address. Never had a propblem before.

You folks are tops! Thank you in advance.

Thomas

Hi,

I use outlook 2007. Every time I check my emails (automatically every 30
minutes) I get a message "the server you are connected to is using a security
certificate that cannot be verified", and I have to press that I accept it.
Is there a way to make outlook accept this certificate automatically?
thanks

Hi There, I receive a message each time I start Outlook stating: "The server you are connected to is using a security certificate that cannot be verified. The target principal name is incorrect. Do you want to continue using this server?" I have checked the security certificate and it is for my hosting company. Is there somewhere in Outlook that I can specify this certificate as "trusted" so that the message will not appear? Thanks, Kris


Hi,

I setup a client in POP3 with Outlook 2007 and Exchange 2007. I configured the client to use POP3 with SSL on port 995 and SMTP SSL. When I tested the Account Settings, on the tasks log onto incoming mail server POP3, I received a pop Internet Security Warning "The server you are connected to is using a security certifiact that cannot be verified". When I go to the webmail to mail.mydomain.com the certificat is valid. When I created the certificat, I enabled the certificat for POP, IMAP, SMTP and IIS services.

Any idea?

Thanks

I am using Outlook 2007, and my internet service provider is aol.imap.com.
When I attempt to download my e-mails, I get an error message stating, "The
server you are connected to is using a security certificate that cannot be
verified."

I have seen some posts indicating that I should download a new certificate
from AOL. However, I have visited the AOL website numerous times, and can
not find a page that permits me to download a certificate.

Like others who have the same problem, this problem surfaced about a month
ago. It is probably the result of some automatic update by Outlook, or some
change at AOL. Does anyone know how to prevent this message from occurring?

I'm using Office 2007 Beta and now am getting an Internet Security Warning in
Outlook everytime it opens: The server you are connected to is using a
secutiry certificate that cannot be verified...

I've tried checking in mail options, but cannot get it to correct itself.

I just added a new POP account from my hosting company. (Siteground.com) Now
everytime open up outlook, a small window pops up stating:
"the server you are connected to is using a security certificate that cannot
be verified...".
If i click yes it goes away but asks me the same question the next time i
open up outlook.
I tried to install the certificate in the "Trusted Root Certificate
Authorites" but it still gives me the same error message above. So i open up
"View Certificate" and it says:
"All the intended purposes of this certificate could not be verified".

I'm running Vista Ultimate
Microsoft Office Outlook 2007 and Internet Explorer 7

any ideas for how i can stop this annoying error message.
--
Dru

Every now and then a box would pop up when I am checking my emails saying

The server you are connected to is using a security certificate that cannot
be verified, the target principal name is incorrect

This has been happening for a week now, is this an issue with my ISP?

Thanks


Every time I starts the Outlook I get the message that contains the following information.  How can I stop it from coming up?  If I say "yes" to the message the program will just go on.  I have even followed the prompt after clicking the View Certificate..." button to install the certificate but it hasn't made any difference.

"The server you are connected to is using a security certificate that cannot be verified.  The target principal name is incorrect.  Do you want to continue using this server?"

When I start Outlook 2007, I get the following error:
The server you are connected to is using a security certificate that
cannot be verified. The revocation function was unable to check
revocation because the revocation server was offline. Do you want to
continue using this server?

This happens every time I start Outlook, and I'm not sure why. Is there
a way to disable this prompt, so it always uses this server?

Cheers,
Chase

I have a message that keeps popping up in Outlook and I cannot get rid of it.
The message is "Internet Security Warning The server you are connected to
is using a security certificate that cannot be verified. The target
principal name is incorrect. Do you want to continue using this server" I
click "NO" but it keeps popping up. If I click "View Certificate" it says
Issued to *.modserver.com issued by Equifax Secure Certificate Authority.

Can someone help me get this to quit popping up?

Thanks in advance - you guys and gals are the greatest!

I have a message that keeps popping up in Outlook and I cannot get rid of it.
The message is "Internet Security Warning The server you are connected to
is using a security certificate that cannot be verified. The target
principal name is incorrect. Do you want to continue using this server" I
click "NO" but it keeps popping up. If I click "View Certificate" it says
Issued to *.modserver.com issued by Equifax Secure Certificate Authority.

Can someone help me get this to quit popping up?

Thanks in advance - you guys and gals are the greatest!

A previous question was presented by someone using Outlook Express but I'm
using Outlook 2007 and having the same problem trying to access AOL emails
every time I open outlook. I get an internet security warning that states
"The server you are connecting to is using a security certificate that cannot
be verified. The target principal name is incorrect. I have the option to
view the certificate and I must click Yes to continue using the server to
obtain my AOL emails. IS there a way to turn this warning off or to turn off
the requirement that I click yes to proceed? Inside the certificate are all
kinds of settings/properties which look like they can be changed like
cross-certificates and OCSP's, none of which I know anything about. I just
want to be able to do something to get Outlook to stop requiring me to click
yes every time I want to check my email from AOL. The certificate itself
from AOL looks up to date. Is there something with AOL I should be doing?
THANKS in advance!!!

A previous question was presented by someone using Outlook Express but I'm
using Outlook 2007 and having the same problem trying to access AOL emails
every time I open outlook. I get an internet security warning that states
"The server you are connecting to is using a security certificate that cannot
be verified. The target principal name is incorrect. I have the option to
view the certificate and I must click Yes to continue using the server to
obtain my AOL emails. IS there a way to turn this warning off or to turn off
the requirement that I click yes to proceed? Inside the certificate are all
kinds of settings/properties which look like they can be changed like
cross-certificates and OCSP's, none of which I know anything about. I just
want to be able to do something to get Outlook to stop requiring me to click
yes every time I want to check my email from AOL. The certificate itself
from AOL looks up to date. Is there something with AOL I should be doing?
THANKS in advance!!!

When I try to get my e-mails from imap.aol.com, I get an error message
stating, "The server you are connected to is using a security certificate
that can not be verified." When I view the security certificate, the
software states, "Windows does not have enough information to verify this
certificate." The message states that the certificate is issued to
imap.mail.aol.com.

What can I do to avoid this message? Other people have suggested that I
install a new certificate, such as by doing something at the "cpanel
login." But I don't know how to do this.

When I try to get my e-mails from imap.aol.com, I get an error message
stating, "The server you are connected to is using a security certificate
that can not be verified." When I view the security certificate, the
software states, "Windows does not have enough information to verify this
certificate." The message states that the certificate is issued to
imap.mail.aol.com.

What can I do to avoid this message? Other people have suggested that I
install a new certificate, such as by doing something at the "cpanel
login." But I don't know how to do this.

The server you are connected to is using a security certificate that could not be verified.

A certificate chain processed, but terminated in a root certificate which is not trusted by the trust provider.

Do you want to continue using this server? Yes/No

Question: Every time I start Outlook I get this message. How can I disable this message? Thanks

Hi, I've installed Outlook 2007 on Windows XP SP2 and each time I start it,
it complains

Internet Security Warning
The server you are connected to is using a security certificate that
cannot be verified.
The target principal name is incorrect.

The account that is causing troubles is an IMAP account over SSL. The server
has a valid wildcard certificate for mailbox*. and the
server that I'm connecting to is mailbox180.. The
certificate doesn't show any errors and everything works fine after I accept
the dialog. I don't have any problems with this same server and settings
under Outlook Express 6.0, Mozilla Thunderbird or Outlook 2003.

Any suggestions on how I can avoid the message showing every time?

When I first attempt to send/receive emails when opening Outlook2007, I
receive the following message for two of my POP3 accounts (both from the same
provider).

"The server you are connected to is using a security certificate that cnnot
be verified. The target principal name is incorrect. Do you want to continue
using this server?"

To which I answer yes. Subsequently pushing the send/receive button
generates no such warning. However... the continual answering of this
question is getting old fast.

According to my provider, "We're using a self-signed certificate for our
ticketing system at the moment. There shouldn't be any errors, just a
warning that the certificate is not signed by the default list that the
browser knows about."

Anyone know how I can stop these annoying messages from appearing? At the
suggestion of the provider's support area, I loaded the certificates into
IE7, but that has had no effect.

Thanks in advance.

Hi,

From "Certificate Use in Exchange Server 2007"
(http://technet.microsoft.com/en-us/l...bb851505.aspx), I got the
impression that Outlook 2007 supports using wildcard names in the certificate.

But every time when start Outlook after I upgraded to Outlook 2007 from 2003
on Windows XP SP2 (or Vista), I got a Internet Security Warning - The server
you are connected to is using a security certificate that cannot be verified.
The target principal name is incorrect.

I am using a profile for IMAP over SSL, not for Exchange. The server has a
valid wildcard certificate for mailserver*.domain.com and the server that I'm
connecting to is mailserver123.domain.com. The certificate doesn't show any
errors and everything works fine after I accept the dialog.

As I mentioned, the same machine was installed with Outlook 2003 and had no
problem then. Also I don't have any problems with the same server and
settings when using Outlook Express 6.0 or Mozilla Thunderbird now - while
Outlook 2007 giving me the warning.

Any suggestions on how I can avoid the message showing every time? Is there
any "secret" checkbox or registry key which I can turn off this warning on
Outlook side? Please note the mail servers are not Microsoft Exchange, so
please don't suggest making changes on server side based some KB articles.

Thanks in advance

Eric

Hi there - any Outlook MVPs (or anyone really) that's knowledgeable
regarding getting a Linux email server secured via SSL to talk to Outlook
2007 and not have it throw an error?

This is the error I'm seeing:

"The server you are connected to is using a security certificate that cannot
be verified. A certificate chain processed but terminated in a root
certificate which is not trusted by the trust provider."

Here's how my server admin explains what we have:

"We have a self-signed root CA, which you have imported as a trusted root
CA. Our IMAP/SSL server uses a certificate that is signed by that root CA."

We've been trying to get this to work off and on for well over a year, and
haven't been successful. It's baffling to both my admin and myself, because
it's not like Outlook is some obscure email program, yet this process is
trivial in other email programs. I've installed the self-signed cert (via
right click > Install) yet Outlook still throws the error.

ANY help would be much appreciated!

Hi all,

I have a SSL IMAP email account that I just setup in Outlook 2007.

Everytime I run the program I get a popup Screen shot here: http://gyazo.com/a394a09ca212897730c...png?1362620546

"Internet Secuirty Warning"
The server you are connected to is using a security certificate that cannot be verified. The target principle name is incorrect. View Certificate.

Do you want to continue using this server, Yes or No. View certificate screenshot http://gyazo.com/722e280565a62d8c6b4bfe841c4e9ffc.png

I expect to see a popup because the certificate is self signed so I always just click Yes to continue using the server/email account, but how do I get Outlook 2007 to remember this?, so every time I run the program I don't get this annoying Internet Security Warning popup?
Other email clients just have a simple remember action button or something along those lines.

Any help or tutorials would be much appreciated

I get a security warning "the sever you are connected to is using a security
certificate that cannot be verified.
The certificates CN name does not match the passed value
Do you want to continue using this servier?
If I click yes I and continue, but I want the diologe to go away!

I use ATT secure email and the setting work fine in outlook express. At says
this is a microsoft issue.

help

Hello,

we have a mail server which offers SMTP, POP, IMAP and webmail services.
The server has a single IP address, but multiple DNS aliases, in this form:

servername.domain.it
smtp.domain.it
pop.domain.it
imap.domain.it

As stated above, they all resolve to the same IP address.
The access to the server for all the protocols is either via TLS or SSL (TLS
is used over SMTP, while SSL is preferred on IMAP, POP and HTTP; read IMAPS,
POPS and HTTPS).
Obviously, the server presents to the clients a X.509 certificate. That
certificate has, as the common name, the one in the form
"servername.domain.it"; while all the others FQDN above are set in the
certificate as "Subject Alternative Names", as defined in RFC 3280.

All of our clients are configured to use the alternative names, i.e
"pop.domain.it" for POP access, and so on.
With this configuration we experienced no problem at all with any mail
clients (of the Outlook/Outlook express family, and others), neither for web
browsers when using the webmail (IE 6, IE7, and other browsers) since the
beginning.

Only Office 2007 which are starting to adopt now seems to ignore the
"Subject Alternative Names" field, and it only seems to search for a match
between the server name configured in the client, and the one presented *into
the Common Name* field of the X.509 certificate. With Outlook 2007, we got a
security warning which states that

"The server you are connected to is using a security certificate that
cannot be verified.
The target principle name is incorrect.
Do you want to continue using this server?"

The error message disappears when we configure Outlook 2007 to use as the
(for example) POP server the name set as Common Name of the certificate;
"servername.domain.it"; only ignoring the "Alternative" names.

We would need to find a way to have Outlook 2007 working with the same
configurations in use now for all the (thousand of) clients, in foresight of
a migration of the client systems to Office 2007. without requiring the users
to change their client settings.

Side note: the problem arises either flagging the "Subject Alt Names" X.509
extension as "non critical" and as "critical".

Thank you so much for any help.

Fabio


Not finding an answer? Try a Google search.