Dears,

I have an urgent and annoying issue of POP3, I am trying to connect via POP3 in Win7 with Oulook 2013 but if gives failed.

I have 1 Exchange 2013 server (CAS/Mailbox).

I have started the POP3 services (2 services).

I have prepared the certificate after enabling the POP.

The certificate is assigned to use: SMTP, Outlook Anywhere, POP, IMAP and IIS.

Everything is working Fine: RPC/HTTPS, OWA, and Outlook Anywhere.

I am telneting on Exchange server ad these ports are opened: 25, 587, 110, 995.

The certificate is issued by internal CA, the root certificate is installed on user/computer store at client.

The certificate SANs are added.

The certificate request include the right name of POP server (SANs).

Can you tell me what I should do to fix this issue on both Server side and Client Side? What should I do further to connect POP3?

Thanks

Regards

Hello

What is the error message in outlook?
on exch server enable logging: Set-PopSettings -Server "CAS01" -ProtocolLogEnabled $true
and restart pop services and try connect and check log file

Hello,

I did enable this commands, but no luck. Error says username or password are invalid!!

Thanks

Regards

Hello

For user name use upn ?

Hello

For user name use

Hello

and upn and email addres is same?
if not try domain\username

Dears,

any update, I need urgent help and solution?

Thanks

Regards

Hello,

Please do the POP Email online test via the below link and let us know the result:

https://testconnectivity.microsoft.com/

Thanks,

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