Hello there Samuel 233.

Hi there

we have read your mail. We are trying to help you.

Greetings Firefox Volunteer.

Hello there. Samuell233.

I found something about that if you have activated a new installation or add-on. It would change when restarting Thunderbird and an improvement would occur. I don't know if this would really help?

I will look further For you in Thunderbird. About Mail-merge add on.

How long do you still have time if I may ask is it going to be tight?

https://addons.thunderbird.net/en-US/thunderbird/addon/mail-merge/ Do you use this program?

https://support.office.com/en-gb/article/use-mail-merge-to-send-bulk-email-messages-0f123521-20ce-4aa8-8b62-ac211dedefa4 (Scanned with antivirus)

The Developer has no email reference.

Greetings Firefox Volunteer.

Thank you so much for your assistance this is very much appreciated. Yes this is indeed the add-on I am using. I have reached out to the developer who told me that unfortunately he removed the concurrency feature in the last version because of development budget reasons, here is his message:

>Multiple concurrent connections were supported by Mail Merge in the past. Though this feature was more or less unofficial and you had to modify a hidden preference in the Config Editor of Thunderbird.

>During the huge rewrite for version 5, I (silently) dropped support for this feature. The main reason for this decision was, that I hardly ever tested it and it was prone to introduce timing issues, e.g. when two messages were interacting with the message body - more or less - simultaneously, there was a slight chance for undefined behavior.

>(Fun fact: You are only the second user, who reported the feature was missing - in 10 months.)

I am however still interested in tips to have Thunderbird send messages faster, sending 4000 emails took almost 5 hours.... Is there a way to configure Thunderbird to process the Outbox concurrently? Maybe an Addon exists? Or some hidden setting in Thunderbird?

Thank you again for your help,

Samuel

Hello there again Samueel233

For the use of Thunderbird Mail.

http://kb.mozillazine.org/Limits_%28Thunderbird%29

https://ftp.mozilla.org/pub/thunderbird/releases/ http://mailtweak.mozdev.org/installation.html

This was the older version/method of sending bulk mail.

We also have a another extension : https://addons.thunderbird.net/nl/thunderbird/addon/mailredirect/?src=search

It s more for resend. Greetings Firefox Volunteer.

Unfortunately none of this was helpful, I found no setting allowing to increase the sending rate of the outbox, and the software you linked are not relevant to what I am trying to do.

Hello there 223.

I know I thought you would like it.

Unfortunately we cannot help you now but I believe that a new add-on will be developed in a short time.

(p.s. There are also paid options on Google for the functions that you are looking for. You may be interested in

https://www.gmass.co/ )

have fun.

thank you for using thunderbird.

greetings Firefox Volunteer.