VPOP can not download Mail from Zimbra Saver

[Chimwemwe]

Friends
We have just switched ISP, our new ISP uses Zimbra Server and we use VPOP to manage our mails internally. WE are able to send mails out using POP3 but we can not accept mail from the Zimbra Server using SMTP.

VPOP reports an error that VPOP3 has encountered an error whilst retrieving messages from your ISP
POP3 server (mtll (1))
The error received from the ISP was: "-ERR invalid username/password"
The last command sent by VPOP3 was: "PASS *******
"

This problem is usually an ISP problem which VPOP3 is just forwarding on to you.
Check with your ISP for more information.

Please help our mails are stuck with the ISP

[uxbod]

Welcome to the forums

Your question would be better directed to the ISP support team.

[Chimwemwe]

Originally Posted by uxbod

Welcome to the forums

Your question would be better directed to the ISP support team.

They have failed to address the problem from some weeks now. we need guidance on the comaprtibility of the two and what configuration they require at the server

[uxbod]

When you connect are you using just <username> or <username>@<domain.com> ?

[Chimwemwe]

Originally Posted by uxbod

When you connect are you using just <username> or <username>@<domain.com> ?

we use username@domain.com ie mccci@mccci.org

[uxbod]

That should be okay; unfortunately this is something the ISP is going to need to resolve for you as they will need to check their log files to see why you are unable to authenticate. If you were to try connecting using a mail client to the POP3 address using the same details does that work ? Make sure you tick the box for leave mail on the server so you do not pull it down accidentally and remove it from the server.

[Chimwemwe]

Originally Posted by uxbod

That should be okay; unfortunately this is something the ISP is going to need to resolve for you as they will need to check their log files to see why you are unable to authenticate. If you were to try connecting using a mail client to the POP3 address using the same details does that work ? Make sure you tick the box for leave mail on the server so you do not pull it down accidentally and remove it from the server.

I will try this and come back to you soon