See https://support.mozilla.org/en-US/kb/cannot-send-messages

Do you get any error message?

I do get error messages-connect error 10060- and it says: An error occurred while sending mail. "The mail server sent an incorrect greeting. Cannon connect to SMTP server". It hen lests the SMTP server numbers and then a bunch of same numbers with the port # in ( ). Each attempt to send a message has different server numbers. I am using my Yahoo server to send messages from this account until I can get that smtpout.secureserver.net working

I appreciate your response and help if you are able to come up with something!

Please post your Troubleshooting Information. At the top right of the Thunderbird window, click the menu button , then select Help > Troubleshooting Information. Press the Copy text to clipboard button and paste the information into your reply.

An error occurred while sending mail: The mail server sent an incorrect greeting: Cannot connect to SMTP server 68.178.252.229 (68.178.252.229:587), connect error 10060.

Troubleshooting Information?

I copied the troubleshooting info in my response above..I wasn't able to do it the way you explained, but that is the message I got when trying to use that server and I did a copy and paste. Please let me know if I'm missing something.....

Please post your Troubleshooting Information. At the top right of the Thunderbird window, click the menu button , then select Help > Troubleshooting Information. Press the Copy text to clipboard button and paste the information into your reply.

We're interested in your settings in Thunderbird.

When I clicked on the TB menu on the right, then Help, below is what I got for choices of what to do, that's where I stopped and went back and copied my error message for that server and pasted it above.

Thunderbird Thunderbird Free Download English Systems and Languages Release Notes Privacy Help Topics

Tips and tricks

Install, Migrate and Update

Emails

News Feeds (RSS), Blogs and Social

Contacts

Calendar

Customize controls, options and add-ons

Privacy and security settings

Get community support Volunteer for Mozilla Support

You're using the horrible new Application Menu.

One thing I heartily dislike about it is that different things happen if you hover or if you click. You clicked. Please hover over Help instead.

What gets me is that there is no clear direction as to which elements will respond to hovering, or indeed clicking.

Most advice here is given for the previous and traditional Menu, across the top. <alt> + v should make this visible. .

Thanks, Zenos, that's the trick! I'll post the troubleshooting for Christ1,

Application Basics

Name Thunderbird Version 38.4.0 User Agent Mozilla/5.0 (Windows NT 6.3; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.4.0 Profile Folder (Local drive) Application Build ID 20151119061742 Enabled Plugins about:plugins Build Configuration about:buildconfig Memory Use about:memory Mail and News Accounts ID Incoming server Outgoing servers Name Connection security Authentication method Name Connection security Authentication method Default? account1 (imap) imap.secureserver.net:993 SSL/TLS Normal password smtp.mail.yahoo.com:587 STARTTLS Normal password true account2 (none) Local Folders None Normal password account3 (pop3) pop.mail.yahoo.com:995 SSL/TLS Normal password smtp.mail.yahoo.com:587 STARTTLS Normal password true account4 (pop3) mail.pulmanpromotionsandsales.com:110 STARTTLS Normal password mail.pulmanpromotionsandsales.com:587 STARTTLS Normal password true account5 (pop3) mail.pulmanpromotionsandsales.com:110 STARTTLS Normal password mail.pulmanpromotionsandsales.com:587 STARTTLS Normal password true Crash Reports Report ID Submitted bp-97da9bc3-8901-42d3-aa70-9d3fe2151016 10/16/2015 bp-f852782d-0146-44dc-86d4-689c02151001 10/1/2015

All Crash Reports Extensions Name Version Enabled ID Mail Merge 4.3.0 true mailmerge@example.net Lightning 4.0.4.1 false {e2fda1a4-762b-4020-b5ad-a41df1933103} Important Modified Preferences Name Value browser.cache.disk.capacity 358400 browser.cache.disk.smart_size_cached_value 358400 browser.cache.disk.smart_size.first_run false browser.cache.disk.smart_size.use_old_max false extensions.lastAppVersion 38.4.0 font.internaluseonly.changed true font.name.monospace.el Consolas font.name.monospace.x-cyrillic Consolas font.name.monospace.x-unicode Consolas font.name.monospace.x-western Consolas font.name.sans-serif.el Calibri font.name.sans-serif.x-cyrillic Calibri font.name.sans-serif.x-unicode Calibri font.name.sans-serif.x-western Calibri font.name.serif.el Cambria font.name.serif.x-cyrillic Cambria font.name.serif.x-unicode Cambria font.name.serif.x-western Cambria font.size.fixed.el 14 font.size.fixed.x-cyrillic 14 font.size.fixed.x-unicode 14 font.size.fixed.x-western 14 font.size.variable.el 17 font.size.variable.x-cyrillic 17 font.size.variable.x-unicode 17 font.size.variable.x-western 14 mail.openMessageBehavior.version 1 mail.winsearch.firstRunDone true mailnews.database.global.datastore.id f18fd5d3-7814-47e5-85e0-6d9066c1969 mailnews.database.global.views.conversation.columns {"threadCol":{"visible":true,"ordinal":"1"},"flaggedCol":{"visible":true,"ordinal":"3"},"attachmentCol":{"visible":true,… mailnews.database.global.views.global.columns {"threadCol":{"visible":true,"ordinal":"1"},"flaggedCol":{"visible":true,"ordinal":"3"},"attachmentCol":{"visible":false… network.cookie.prefsMigrated true network.predictor.cleaned-up true places.database.lastMaintenance 1450211337 places.history.expiration.transient_current_max_pages 104858 plugin.importedState true print.printer_Canon_MG6300_series_Printer_WS.print_bgcolor false print.printer_Canon_MG6300_series_Printer_WS.print_bgimages false print.printer_Canon_MG6300_series_Printer_WS.print_colorspace 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Which account is giving trouble?

I can't see any of these accounts using the server you mentioned: smtpout.secureserver.net.

Your incoming secureserver account (imap.secureserver.net) is still set to use yahoo's smtp server.

I have the uneasy feeling that you have tried to alter an existing account; it's always much cleaner to create a new account.

You will need to add the smtp server, if you haven't already done so, under Tools|Account Settings. Go right down to the bottom, look for the last item in the list, Outgoing Server (SMTP) and there you can add your new server. But this would have been done automatically for you if you added it as a new account, whereas it looks to me as if you've tried to edit an old account.

Tools|Account Settings|{select the account}|Account Settings and down at the bottom of the right-hand pane, Outgoing Server (SMTP) is where you select the server to use.

I did alter an account because when I tried to do a new account with my email address that was the same as for the old server we migrated from, Thunderbird wouldn't let me set up a new one with the same email. So we altered the existing one. As for the yahoo smtp server showing up, I got rid of the smtpout server since it wasn't sending and hooked my email up with the yahoo one for now. I already lost all my folders when I altered the existing email account, so what will happen if I do that and delete the email account?