There was an issue that sounds similar to what you describe, but it was more of a display issue than an actual change in settings.

Are you using the latest Thunderbird version : 68.8.1

Thanks for your reply. I am using the latest version 68.8.1. Also, this is more than a display problem as it does effect the ability to send email.

To ensure each account really is using a different smtp can you do this and confirm each account is using a different smtp server. Please humour me and do the following as I cannot see what you can see, so need to be very clear what is and what is not set up.

In 'Account Settings', in left directory pane at bottom click on 'Outgoing Server (SMTP)' to see list of outgoing servers.

you should have three of them.

• select the first and click on 'Edit'
• Description: please enter the full email address here for 1st mail account.
• Set 'Username' as full email address for 1st mail account
• Click on OK.

• select the second and click on 'Edit'
• Description: please enter the full email address here for 2nd mail account.
• Set 'Username' as full email address for 2nd mail account
• Click on OK.

repeat for the third.

Now in left pane, select the first mail account name. Bottom right under 'Outgoing Server (SMTP):' Is the selected outgoing server showing the same email address as the account? If no click on drop down and select the one that has same email address. Because you changed the 'Description' field as requested, you should be able to ensure the correct one has been selected in the actual settings for the account. This is the first thing I need to be assured is set up correctly.

Please repeat for each of the mail account name in left directory pane.

Click on OK

REstart Thunderbird to ensure those settings are selected.

Toad-Hall, Thank you. Your suggestion not only solved the problem but taught me something about Thunderbird I did not know. I appreciate your effort to respond. Barryng