I can not send email, but I can and do receive email. What can I do to fix this

SMTP and POP are defacto standards so the client or OS you use is moot provided it sticks to the standards (Linux DOES use all defacto standards rigidly).

Check your SMTP settings (SMTP is used to send email). Make sure you verify ports, encryption methods and server names, one wrong setting will make it NOT work.

I have checked and verified the settings. I can receive but I can not send.

I don't know what more to add.

Please tell us a bit more of your provider details (not your user and password) only a link or some note of your provider name...

Thanks

Dear Marco Braida:

Thank you for your attempt to help. I will try to explain my recent history with Ubuntu 10.4

I live in greater Denver and use the local MICROCENTER for technical support and purchase most of my computer stuff there.

1. Prior to my submission of my question (# 119175) I had difficulty in using UBUNTU 10.4. I had previously used 9.4 and ran into some frustrating problems with the GRUB loader.
2. Then tech support at the MICROCENTER helped me to install 10.4. (My 9.4 was uninstalled). I have 4 hard drives on my computer operating Windows XP, service pack 3. At the time of this installation I partitioned my first disk drive (500GB) into 2+ partitions: Windows 300GB, UBUNTU 195GB and a swap partition for UBUNTU of 5GB. This was a time consuming activity for the experienced tech support personnel. They also modified my GRUB installer to automatically start (after time-out) into WINDOWS.
3. Then I tried to tried to learn to use UBUNTU. My first failure was the absence of an Internet connection. MICROCENTER solved this problem by removing all extraneous "stuff" out of UBUNTU which resulted in a working OS of UBUNTU (with a solid wired interconnection from my computer to my high speed modem) and the same box gave me a solid WINDOWS OS with the identical physical wired connection. At this point the computer worked using either WINDOWS or UBUNTU depending on my GRUB choice. EXCEPT!!!! I could not send mail but could receive it in UBUNTU while WINDOWS worked both without change. That caused me to initiate my question # 119175.
4. While waiting for help I decided to download some 8 or 9 UBUNTU updates which were installed automatically. This caused a catastrophic failure: A) the GRUB disappeared, B) UBUNTU cannot be loaded.
5. MICROCENTER technical support spent 4 hours trying to get this back to work without success. Then they and I gave up.
6. I tried to load a new version of either UBUNTU 10.4 or 9.4 from a CD. 10.4 gave me an error message that it ran into a problem but would start up as an independent desktop. (This appearance was different from what I had previously installed into my second partition on my first disk.) Further it had no internet connection again. My modem is located in my basement and my computer is on the 2nd floor. I physically looked at my modem and found all lights green as expected. I then unplugged the modem and re-connected the power and after about 5 minutes all lights were normal again. After this inspection my computer indicated that there was still no connection to the Internet. I then turned off UBUNTU and started WINDOWS. The next observation was interesting: At startup the Internet connection failed. However 30 seconds later the Internet connection was solid. All of this activity is from a single box computer with a solid wired LAN connection.

At this point I give up after spending too much time on this problem. If you can find some answers to these problems I would be happy to listen and experiment further. Until then I am stuck in Windows XP.

Thank you again for your help.

John Rosing
  ----- Original Message -----
  From: marcobra (Marco Braida)<mailto:<email address hidden>>
  To: rosingj@q.com<mailto:rosingj@q.com>
  Sent: Friday, July 30, 2010 1:33 PM
  Subject: Re: [Question #119175]: I can not send email,but I can and do receive email. What can I do to fix this

  Your question #119175 on thunderbird in ubuntu changed:
  https://answers.launchpad.net/ubuntu/+source/thunderbird/+question/119175<https://answers.launchpad.net/ubuntu/+source/thunderbird/+question/119175>

      Status: Open => Needs information

  marcobra (Marco Braida) requested for more information:
  Please tell us a bit more of your provider details (not your user and
  password) only a link or some note of your provider name...

  Thanks

  --
  To answer this request for more information, you can either reply to
  this email or enter your reply at the following page:
  https://answers.launchpad.net/ubuntu/+source/thunderbird/+question/119175<https://answers.launchpad.net/ubuntu/+source/thunderbird/+question/119175>

  You received this question notification because you are a direct
  subscriber of the question.

john please visit your link question https://answers.launchpad.net/ubuntu/+source/thunderbird/+question/119175
to manage it please don't reply using mail

So we can test your working network layer ( i will suggest you to disable ipv6 if it is active) open a terminal and type:

ifconfig -a

copy and paste result from terminal here

I can not respond to your suggestion because I can not open UBUNTU on my computer. The GRUB is gone. My only method would be to use my CD which gives me an error message and then gives me its UBUNTU desktop. Is you suggestion of opening a terminal there and typing "ifconfig -a" going to provide you any information? Please remember, I am also not connected to the internet at that point! I am responding to you here on WINDOWS XP.

  ----- Original Message -----
  From: marcobra (Marco Braida)<mailto:<email address hidden>>
  To: rosingj@q.com<mailto:rosingj@q.com>
  Sent: Saturday, July 31, 2010 4:59 PM
  Subject: Re: [Question #119175]: I can not send email,but I can and do receive email. What can I do to fix this

  Your question #119175 on thunderbird in ubuntu changed:
  https://answers.launchpad.net/ubuntu/+source/thunderbird/+question/119175<https://answers.launchpad.net/ubuntu/+source/thunderbird/+question/119175>

      Status: Open => Needs information

  marcobra (Marco Braida) requested for more information:
  john please visit your link question https://answers.launchpad.net/ubuntu/+source/thunderbird/+question/119175<https://answers.launchpad.net/ubuntu/+source/thunderbird/+question/119175>
  to manage it please don't reply using mail

  So we can test your working network layer ( i will suggest you to
  disable ipv6 if it is active) open a terminal and type:

  ifconfig -a

  copy and paste result from terminal here

  --
  To answer this request for more information, you can either reply to
  this email or enter your reply at the following page:
  https://answers.launchpad.net/ubuntu/+source/thunderbird/+question/119175<https://answers.launchpad.net/ubuntu/+source/thunderbird/+question/119175>

  You received this question notification because you are a direct
  subscriber of the question.

Reading your old questions https://answers.launchpad.net/~rosingj

seems you already have similar issue with Ubuntu 9.04

https://answers.launchpad.net/ubuntu/+source/thunderbird/+question/83484

And you have solved please try the same in Ubuntu 10.04

Please read my link to bug #615102. I now have no UBUNTU. I believe that if this installation problem can be solved then I will be able to solve the others. Until then I am stuck since I have no UBUNTU!!!! I need answers to bug #615102