Three have their own smtp server called smtp-mbb.three.co.uk - no security type/no login. Use that for emailing through their network.

Cheers,

Stuart

 

I'm having similar problems recieving emails. I'm also on three network. Any solutions?

 

As per the other reply, for SMTP, use port 587 instead of port 25. I found the same info from my ISP, rather than 3, but it confirms the same advice.

 

I am on Vodafone, and have tried the above suggestions with no luck. Any other ideas? Am receiving the mails fine, just cannot send

 

I just set the outgoing server as smtp-mbb.three.co.uk and left it on port 25 and have no problems at all

 

Just to update a little bit.
I hade a problem with email settings on HTC Desire in HTC EMAIL WIDGET.
Despite that Android's email client works just fine straight away,my HTC clent just couldnt connect to server.

None of the settings provided in earlier answers worked.

I finally found the right settings.

Incoming settings :

Protocol : IMAP
IMAP Server : imap.gmail.com
Security : SSL
Server port : 993

Outgoing settings :

SMTP server : smtp.gmail.com
Security : SSL
Sever port : 465

Im on 3 contract,with HTC Desire and this problem is only with HTC Email client,my friend had the same problem with his Desire.
I had it also with HTC Hero but i dont remeber how i solved this.
When i got my Desire it was running Android 2.1,i had to set it up manually,now i upgraded it to Android 2.2 and again had to set it up.
I must mention that i havent got any settings on my memory card becouse i formatted it.

I hope that will be helpfull to anyone.

 

just spent and hour or so on the phone with three and they didn't help. did the above and all working fine. did not change port. thanks mate!

 

I'm also having problems sending email. I'm on blueyonder (Virgin) for email and use Virgin Mobile. I can receive OK but not send. Help!

 

Can anyone help with my issue (above)?

 

My girlfriend has an HTC Desire on Three and was having problems sending emails from her own domain. I put this SMTP server in, and she can send when she's on mobile internet. But now if she's on Wi-Fi, she can't send. Previously, it was the other way round - Wi-Fi was okay, but sending via mobile internet always failed (she used her own domain's SMTP server with the correct login / password).

Does anyone know if it's possible to set up the email on an HTC Desire on Three so you can send both via mobile internet and wi-fi? It's driving me nuts.