Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Cannot Send mail messages using SMTP

  • 9 odgovori
  • 1 ima ovaj problem
  • 5 views
  • Posljednji odgovor poslao Matt

more options

Whenever I send a message i get the following error

'Sending of the message failed'

The problem is exactly this.

my smtp server uses a completely different username and password combination then my IMAP.

I cannot save the password in password manager. I cannot set the SMTP password anywhere within TB.

No matter what i try i cannot get a password challenge from TB to enter in the authentication information.

Whenever I send a message i get the following error 'Sending of the message failed' The problem is exactly this. my smtp server uses a completely different username and password combination then my IMAP. I cannot save the password in password manager. I cannot set the SMTP password anywhere within TB. No matter what i try i cannot get a password challenge from TB to enter in the authentication information.

All Replies (9)

more options

have you set the correct username for the SMTP server in Thunderbird?

Right click the account in the folder pane and select settings Scroll to the bottom of the account list and select outgoing server (SMTP) Edit the settings to include the correct user name.


Now when Thunderbird sends you will be promoted for the password as their is none for that account and username.

more options

Matt said

have you set the correct username for the SMTP server in Thunderbird? Right click the account in the folder pane and select settings Scroll to the bottom of the account list and select outgoing server (SMTP) Edit the settings to include the correct user name. Now when Thunderbird sends you will be promoted for the password as their is none for that account and username.

Great Suggestion but it did not work. Was never presented with a challenge.

I do not know if this helps but i downgraded to version 1.* I was able to configure smtp settings as anticipated.

I attempted to save the password. and then re-install a newer version. This however did not work. the new TB did not notice the saved passwords in the password manager.

more options

Other things that i have attempted.

Wipe profile (did not work) complete re-install (did not work) downgrade (did not work) upgrade (did not work) save passwords in password manager(did not work) Reconfig smpt settings (did not work) tested on other email client (worked as anticipated)

Hope this information helps

more options

The password storage location has changed since V1, so I guess the conversion poutines got dropped somewhere in the last 40 or so versions.


Please add the troubleshooting information to your post To find the Troubleshooting information:

  • Open Help (or click on three-line-icon and select Help)
  • Choose Troubleshooting Information
  • Use the button Copy to clipboard to select all. Do not check box "Include account names"!
  • Paste this in your post.
more options

Application Basics

   Name: Thunderbird
   Version: 45.0
   User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.0
   Profile Folder: Show Folder
             (Local drive)
   Application Build ID: 20160407161913
   Enabled Plugins: about:plugins
   Build Configuration: about:buildconfig
   Memory Use: about:memory
 Mail and News Accounts
   account1:
     INCOMING: account1, , (imap) secure.emailsrvr.com:143, alwaysSTARTTLS, passwordCleartext
     OUTGOING: , veracitycredit.smtp.com:80, plain, passwordEncrypted, true
   account2:
     INCOMING: account2, , (none) Local Folders, plain, passwordCleartext
 Crash Reports
 Extensions
   Lightning, 4.7, true, {e2fda1a4-762b-4020-b5ad-a41df1933103}
 Important Modified Preferences
   Name: Value
     browser.cache.disk.capacity: 358400
     browser.cache.disk.filesystem_reported: 1
     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
     dom.apps.reset-permissions: true
     extensions.lastAppVersion: 45.0
     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: 17
     mail.openMessageBehavior.version: 1
     mail.winsearch.firstRunDone: true
     mailnews.database.global.datastore.id: d871595b-725c-43ee-98ab-8cff41bb22d
     network.cookie.prefsMigrated: true
 Graphics
     Adapter Description: Intel(R) HD Graphics
     Vendor ID: 0x8086
     Device ID: 0x0152
     Adapter RAM: Unknown
     Adapter Drivers: igdumd64 igd10umd64 igd10umd64 igdumd32 igd10umd32 igd10umd32
     Driver Version: 9.17.10.2932
     Driver Date: 12-12-2012
     Direct2D Enabled: false
     DirectWrite Enabled: false (6.2.9200.17568)
     ClearType Parameters: ClearType parameters not found
     WebGL Renderer: Google Inc. -- ANGLE (Intel(R) HD Graphics Direct3D11 vs_5_0 ps_5_0) -- OpenGL ES 2.0 (ANGLE 2.1.0.316930d51ea9)
     GPU Accelerated Windows: 0
     AzureCanvasBackend: skia
     AzureSkiaAccelerated: 0
     AzureFallbackCanvasBackend: cairo
     AzureContentBackend: cairo
 JavaScript
 Incremental GC: 1
 Accessibility
   Activated: 0
   Prevent Accessibility: 0
 Library Versions
     Expected minimum version
     Version in use
     NSPR
     4.12
     4.12
     NSS
     3.21.1 Basic ECC
     3.21.1 Basic ECC
     NSS Util
     3.21.1
     3.21.1
     NSS SSL
     3.21.1 Basic ECC
     3.21.1 Basic ECC
     NSS S/MIME
     3.21.1 Basic ECC
     3.21.1 Basic ECC
more options

You have an unconventional SMTP set-up. I presume you have bought a domain and your webhost is providing your incoming email. I'd want to check with smtp.com about the outward settings. I can't say that port 80 is wrong, but it's most unusual. I'd have expected 25, 587 or preferably 465. And given what they offer, smtp.com must be able to support your use of your own email address when sending.

more options

THey are correct.

What i dont feel is being understood here is everything WAS WORKING and had been for months since i set this solution up.

Upon the last update and computer restart it just stopped working.

I cannot get it to challenge me for a username password combo. and there is no way for me to define a password for the outgoing server.

This is a flaw in I-face design and implementation.

I cannot even find reference to SMTP server in saved password file within the specific users profile. Only IMAP settings are located there.

Could i just insert the information as wrong information and when the username and password challenge fails from the saved settings could i then re-input the correct ones and have them saved.

more options

I don't understand the "assembling message" text. I can't recall ever seeing this when using Thunderbird, yet you don't have any add-ons that might modify its behaviour.

I'd have said just remove all references to the offending password/identity from the password manager and it should prompt you. There are fault conditions under which this doesn't happen, and removing and reinstalling the affected account usually fixes this.

But on the latest builds of Thunderbird you can now double-click on the username or password in the password manager and edit them in situ. Please use the filter at the top to discover all pertinent entries.

Izmjenjeno od strane Zenos

more options

Messages are assembled into the nsemail.HTML in the temp folder prior to sending. I have never seen the message, but then things happen in my temp folder in a flash, unlike those of people with Avast where it locks out sending mail entirely because it is playing with that file.

That Thunderbird is not even getting to the point of trying to send the mail (which is what I think is happening.) It might be you have a new variant on the Avast thing which is causing mail to never get out of your temp folder to be sent.