K9 & Yahoo email - UK


I recently downloaded K9, having read on here what a good email program it is.

I can't get the thing to work with my Yahoo.co.uk account. It's Pop 3. The account works ok with the standard HTC email program, but when I try to set it up using K9, I get

"Setup could not finish Cannot connect to server (Unable to open connection to POP server)."

I've googled it, I tried setting it up without using wifi, and tried changing settings to IMAP and port numbers, but just can't get anywhere with it.

Any advice would be most welcome, thanks.


Well-Known Member
Not using K9 any more but had it working fine in the past.

Did you use the following servers?

Incoming: pop.mail.yahoo.co.uk
Outgoing: smtp.mail.yahoo.co.uk

Username is your full e-mail address (not just the first part).


Thread starter
Thanks, that's sorted it.

I hadn't put "pop" and "smtp" in front of the relevant addresses.



Android Enthusiast
Yes IMAP is much better than POP. I recently posted the settings I use successfully on K-9 so you should be able to find them with a search.


Android Expert
Now using k9 myself after the HTC app decided it no longer wants to work with yahoo IMAP. It allows mail over WiFi and access to your folders too!

Only gripe is the lack of peak and off peak settings like the default app.


Android Enthusiast
Only gripe is the lack of peak and off peak settings like the default app.
It's push mail though so I don't think that makes any difference. My understanding is those settings adjust the poll frequency.

I have been trying out the Yahoo mail app which is push (although that sometimes only works when it wants to). When it does work I get the notification sound then a few seconds later I get the K-9 notification sound. That is usually long before those emails turn up on my PC.