Rated 4 out of 5 stars

As others already said, this is a great add-on that can save you a lot of time. However, you have to disable Engimail first, otherwise each email is sent encrypted. Please fix this to get the fifth star. :-)

This review is for a previous version of the add-on (3.9.0). 

Rated 4 out of 5 stars

Like Jeffrey below, I had the unpleasant experience of sending out a bunch of encrypted messages because of interference with Enigmail. Please fix this!
Other than that, this is a great add-on.

This review is for a previous version of the add-on (3.9.0). 

Rated 4 out of 5 stars

I have to say, this is a very nice addon. However, if Enigmail is installed, it will encrypt every outgoing email with your key only. This makes the message unreadable for the intended recipients. Disable Enigmail with a restart of Thunderbird....run your mail merge, then re-enable Enigmail........

This review is for a previous version of the add-on (3.9.0). 

Rated 5 out of 5 stars

Great and nifty addon.

This review is for a previous version of the add-on (3.8.0). 

Rated 5 out of 5 stars

Very usefull add-on.
Quick and easy to use.

This review is for a previous version of the add-on (3.8.0). 

Rated 5 out of 5 stars

For mailing lists of 50-250 addresses, this works perfectly and a great solution over using a 3rd party service or trying to setup PHPList or some other server-side mailer.

It's an easy multi-step process. Install the Add-on. Compose the message adding per-recipient customizations. An easy one is to just change a generic "Hi," to "Hi {{FirstName}},"

Save the message as a Draft, but before closing it, choose File -> Mail Merge. It'll go through and create an unsent message for each recipient listed, looking up the replacement values in the address book (default) and doing the swap. So since the messages are now created and residing in the Outgoing folder, can inspect them for a final sanity check before sending.

To send the messages, click File -> Send Unsent Messages. It will churn through them sending each one individually, which creates a copy of the message in the Sent folder.

It's just that simple, really. Seriously, if you only have a dozen to 50-or-so people to send to, use this vs trying to setup something on a server or using a 3rd-party service.

FYI, it takes a while to send individual messages using this process, but it also takes a while using other solutions. The difference is you do not have to baby sit through the compiling/sending but it's not instantaneous either way.

This review is for a previous version of the add-on (3.8.0). 

Rated 4 out of 5 stars

This add-on doesn't look so fancy: You need to read the instruction to get to know how this works.
I just needed to simple bulk sending so I didn't have much problems. It wasn't really practical when I had to learn a lot to get what's really handy, but it already did the job so I guess this is great!

This review is for a previous version of the add-on (3.8.0). 

Rated 3 out of 5 stars

It's a really great tool, but it has some glitches, it seems. I just tried to create a mail to several friends in an address list of the adress book. I referenced a custom field, but the contents of that field weren't always included. There is no way to figure out why it was left out for some of the records.

This review is for a previous version of the add-on (3.8.0). 

Rated 5 out of 5 stars

Used it using the CSV method and worked seamlessly with Thunderbird 24.6

This review is for a previous version of the add-on (3.8.0). 

Rated 5 out of 5 stars

Great add-on. I knew what the add-on was supposed to accomplish, and it took me less than 5 minutes to start using it. I use the CSV file option and it's easy to use and does what I need. This add-on is a must-have for me.

This review is for a previous version of the add-on (3.7.1). 

Rated 5 out of 5 stars

I have run the mail merge with 50 to 1000 email within a CSV file and it works great. I have created templates using HTML and created emails with these templates and everything works great. We have a winner.

This review is for a previous version of the add-on (3.7.1). 

Rated 3 out of 5 stars

I gave this a try and had trouble. If there is a bad email in the list it stops in the middle of your list and it is difficult to determine where. So unless you are sure your list is clean this is not the best product to use.

This review is for a previous version of the add-on (3.7.1). 

Rated 5 out of 5 stars

Возникла проблема с использованием таблиц csv. Оказалось, что несмотря на то, что при сохранении Excel пишет CSV (разделители - запятые) (*.csv). В действительности разделители - точка с запятой ( ; ).
Как лечится ))): В MailMerge в поле "Field Delimiter" указываем ( ; )
И будет Вам счастье )

This review is for a previous version of the add-on (3.7.1). 

Rated 5 out of 5 stars

Easy installation; worked straightaway as expected. Very flexible.

This review is for a previous version of the add-on (3.7.1). 

Rated 5 out of 5 stars

I used the link to a CSV file which allowed huge flexibility. It's a must to have it go to Send Later because you can preview and see all your own mistakes before sending.

This review is for a previous version of the add-on (3.7.1). 

Rated 5 out of 5 stars

A simple and effective utility that works. I had some difficulty setting up the initial configuration, and the developer answered my emails promptly and courteously, with clarification pitched at my level of understanding. Five well-deserved stars, and well worth the donation.

This review is for a previous version of the add-on (3.7.1). 

Rated 5 out of 5 stars

It's Great, thanks a lot.
Now I only have to find the easier way to insert in the text the characters { and }. It will be wonderful if variables could be selected by a menu.

This review is for a previous version of the add-on (3.6.0). 

Rated 5 out of 5 stars

This add-on does what it promises: make email merges simple and intuitive. No difficult installation or technical settings required, just easy to configure personalized messages to a predefined list of recipients.When I experienced some difficulties (due to my own account settings) the support from the developer was quick and thorough, which solved my problems rapidly.Full five stars from me!

This review is for a previous version of the add-on (3.6.0). 

Rated 4 out of 5 stars

A really usefule Add-On. Don't want to miss it, but I've got trouble with S/MIME. I can't send any message with a digitaly signature.

This review is for a previous version of the add-on (3.5.0). 

Rated 4 out of 5 stars

This is a very useful addon, thank you. There is one issue (on Windows) with non ansi characters. no matter if the csv is in ansi or utf8, if the csv contains non latin characters ( greek for example ) they will be displayed as question marks in the Title field of the email. I tried both settings ( UTF8 / Windows-1252 ) to no avail. I also tried both encodings in the CSV file.This seems to be a bug.

This review is for a previous version of the add-on (3.5.0).