There is no POP3 choice for an SMTP server. SMTP only deals with outgoing e-mail. POP3 and IMAP are incoming e-mail configurations.

If I understand you correctly, you want to receive your e-mail through GMail, but send from another e-mail account. That is actually pretty easy to do in Thunderbird.

First, you need to configure Thunderbird to pull in your messages from GMail.

Next, you need to make sure that you have accounts set up in Thunderbird for each of the e-mail addresses that you wish to use for the Reply address.

When you reply to a message, a drop-down list appears in Thunderbird in the From box at the top of the screen where you can select any of the e-mail addresses that you want to show as your Reply address. Thunderbird will substitute the e-mail address that you select as the Reply address. You are not actually sending from the other account, but it appears like you are doing so.

If you do not see the drop-down, upgrade your version of Thunderbird.

There isn’t enough info to identify the problem.

It sounds like you might have a firewall or antivirus software problem that is blocking your outgoing emails. If you can temporarily disable the firewall or antivirus software, see if you can then send e-mails. If you can, then you need to contact the software company to find out how to allow outgoing e-mail.

Make sure that you turn the firewall or antivirus software back on before you attempt to download messages.

You did not say whether you are using a high-speed or a dial up AT&T connection at home. The SMTP connections can be different depending upon which service you are trying to access.

I have a problem with the sent-mail of my Thunderbird account AT HOME.
I recently transferred from Germany to the US and we installed an AT&T provider at home.
The laptop configurations on my laptop, which I brought from Germany, haven’t changed. THey work perfectly at the office (University of Michigan). But at home, I can only received and administer emails on my Thunderbird, the sending always fails.
Could you please let me know what the problem is?
May it be AT&T?
If so, how could that be changed?

Many thanks,
melanie trede

Check out this article. If you have recovered your old Thunderbird files, you should be able to get it to work by pointing Thunderbird to the old files.

http://www.tech-evangelist.com/2006/01/04/mozilla-thunderbird-file-location/

It is not easy to figure out the problem, but keep in mind that even when the settings are correct, if the SMTP server is busy, you may not be able to connect. If the SMTP server cannot be found, then either there is a problem with the server or with the DNS settings for the server. There isn’t anything that Thunderbird can do about either of those problems, but once you get the error message it should no longer be trying to make a connection.

I frequently run into problems with Cox’s mail servers. I just wait a few seconds and try again. I could call Cox’s tech support until the cows come home and they will always blame it on anything but their servers. However, the problem is their servers.

It looks like you have your outbound e-mail pointed to a POP3 mailserver. It should be going to an SMTP server.