Please provide some info: In thunderbird Help > Troubleshooting information make sure 'Include account names' is not selected. click on 'copy text to clipboard' paste info into this question you can edit/remove all info on fonts and printers

Please state which account you are having the issue with.

Thanks for your reply... and the instructions. I hope I got this right.

I'm having trouble with all my accounts now as I don't seem to be getting any emails at all from any of the accounts.

Thanks for the help

 Application Basics

   Name: Thunderbird
   Version: 31.1.1
   User Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Thunderbird/31.1.1
   Profile Folder: Show Folder

             (Local drive)
   Application Build ID: 20140908105904
   Enabled Plugins: about:plugins
   Build Configuration: about:buildconfig
   Memory Use: about:memory

 Mail and News Accounts
   account1:
     INCOMING: account1, , (pop3) pop.googlemail.com:110, plain, passwordCleartext
     OUTGOING: mail.internode.on.net:587, plain, passwordCleartext, true

   account2:
     INCOMING: account2, , (none) Local Folders, plain, passwordCleartext

   account3:
     INCOMING: account3, , (pop3) mail.internode.on.net:110, plain, passwordCleartext
     OUTGOING: mail.internode.on.net:587, plain, passwordCleartext, true

   account4:
     INCOMING: account4, , (pop3) pop3.live.com:110, alwaysSTARTTLS, passwordCleartext
     OUTGOING: mail.internode.on.net:587, plain, passwordCleartext, true

   account7:
     INCOMING: account7, , (imap) imap.googlemail.com:143, plain, passwordCleartext
     OUTGOING: mail.internode.on.net:587, plain, passwordCleartext, true

 Crash Reports

 Extensions
   Signature Switch, 1.6.12, true, {2ab1b709-ba03-4361-abf9-c50b964ff75d}

 Important Modified Preferences

Then why do you have your gmail smtp server settings set to no SSL/TLS?

GMAIl server settings page. http://email.about.com/od/accessinggmail/f/Gmail_SMTP_Settings.htm

re: send from either of my 3 accounts with the appropriate outgoing server SMPT

noticed: All of your mail accounts are only using one smtp server.

Suggest you try:

account1:

    INCOMING: account1, , (pop3) pop.googlemail.com:110, plain, 

For incoming and outgoing server:

user name: Your full Gmail address (e.g. example@gmail.com)
Gmail SMTP password: Your Gmail password

Tools > Account Settings > Server Settings for the pop gmail account Incoming Server Name: pop.gmail.com port: 995 Connection Security: SSL/TLS Authentication Method: Normal Password

Tools > Account Settings > Ougoing Server (SMTP) select the pop gmail server and click on 'Edit' or if no pop gmail server then click on 'Add' Under Description type: Pop gmail Outgoing Server Name: smtp.gmail.com port: 465 Connection Security: SSL/TLS OR port (TLS): 587 Connection Security: STARTTLS Authentication Method: Normal Password click on OK to save changes.

Then assign correct outgoing smtp server to the account: Tools > Account Settings select the pop gmail account bottom right 'outgoing Server(SMTP) click on drop down list and select the pop gmail smtp server.

click on Ok to save settings

account7:

    INCOMING: account7, , (imap) imap.googlemail.com:143, 

For incoming and outgoing server:

user name: Your full Gmail address (e.g. example@gmail.com)
Gmail SMTP password: Your Gmail password

Tools > Account Settings > Server Settings for the imap gmail account Incoming Server Name: imap.gmail.com port: 993 Connection Security: SSL/TLS Authentication Method: Normal Password

Tools > Account Settings > Ougoing Server (SMTP) select the imap gmail server and click on 'Edit' or if no imap gmail server then click on 'Add' Under Description type: Imap gmail Outgoing Server Name: smtp.gmail.com port: 465 Connection Security: SSL/TLS OR port (TLS): 587 Connection Security: STARTTLS Authentication Method: Normal Password click on OK to save changes.

Then assign correct outgoing smtp server to the account: Tools > Account Settings select the gmail account bottom right 'outgoing Server(SMTP) click on drop down list and select the imap gmail smtp server.

click on Ok to save settings

account3:

    INCOMING: account3, , (pop3) mail.internode.on.net:110, 

http://www.internode.on.net/support/guides/email/secure_email/

Tools > Account Settings > Server Settings for the pop internode account Incoming Server Name: mail.internode.on.net port: 995 Connection Security: SSL/TLS Authentication Method: Normal Password

Tools > Account Settings > Ougoing Server (SMTP) select the pop internode server and click on 'Edit' or if no pop internode server then click on 'Add' Under Description type: Pop Internode Outgoing Server Name: mail.internode.on.net port: 465 Connection Security: SSL/TLS Authentication Method: Normal Password click on OK to save changes.

Then assign correct outgoing smtp server to the account: Tools > Account Settings select the pop gmail account bottom right 'outgoing Server(SMTP) click on drop down list and select the Pop Internode smtp server.

click on Ok to save settings

account4:

    INCOMING: account4, , (pop3) pop3.live.com:110, 

https://support.mozilla.org/en-US/kb/thunderbird-and-hotmail

then make sure the account is using correct server, just like the other accounts.