Very Nice ... A few small features would be amazing Rated 5 out of 5 stars

Great addon, Great work! I use it everyday.

I would to set some custom rules like:
-Next 8am (I write at night and most of the time, I want my mail to leave tomorrow morning )
-Next Business day 8am (I write on weekends and some emails should leave when business open)

Thanks

This review is for a previous version of the add-on (6.3.1).  This user has a previous review of this add-on.

Everything you're asking for is supported

Please read the user guide:

https://blog.kamens.us/send-later/

You can write functions to implement whatever scheduling logic you want. Some example functions which do things similar to what you asked for are provided. See this section of the user guide in particular:

https://blog.kamens.us/send-later/#dynamic

Very very useful ! - But please update it to remove unnecessary permissions Rated 5 out of 5 stars

I use it almost daily (nightly I should say ... ) to schedule emails I write on night to be sent during the day ...
Or for some other reasons to be sent after a particular date or time (like at the beginning of an event ... )

I have just one thing which is annoying me : Please update it with recent technology to avoid using unnecessary permissions ...
I'm ready to make a donation, but only after that update :)
Thanks a lot !

This review is for a previous version of the add-on (6.3.1). 

That's a Firefox thing, not a Thunderbird thing

The warning you see about permissions on addons.mozilla.org is only relevant for Firefox add-ons. The add-on API that doesn't require those permissions doesn't even exist in Thunderbird. It's unfortunate that the warning is displayed for Thunderbird add-ons on AMO, but unfortunately there's nothing I can do about that.

Very useful for scheduling emails Rated 5 out of 5 stars

This adds convenient outbox scheduling features, bringing Thunderbird up to par with other popular e-mail clients. I use it to delay emails to clients and partners in other time zones, I don't really want to bother them at night.

This review is for a previous version of the add-on (6.3.1). 

send later stuck all last schedule mails in schedule the time for sending emails. Rated 4 out of 5 stars

If one mail failed (due to wrong email/else) during schedule process that stuck another last all mails in outbox....if anyone facing this issue please reply for solution.

This review is for a previous version of the add-on (6.3.1). 

Thunderbird bug, out of my control

I agree that this is annoying.

Unfortunately, it's a Thunderbird bug, not a bug in Send Later. I reported it to the maintainers of Thunderbird almost six years ago: https://bug635044.bugzilla.mozilla.org/show_bug.cgi?id=749654 . Unfortunately, they still haven't fixed it.

Ottimo aiuto a Thunderbird Rated 5 out of 5 stars

Componente molto semplice ma estremamente comodo per schedulare l'invio di mail.

This review is for a previous version of the add-on (6.3). 

Great add-on! Rated 5 out of 5 stars

This is a really a great add-on, I'm using it for a couple of years already. I just have 2 minor issues with it: the date picker (calendar) shows Sunday as the 1st day of the week and it would be great if the add-on could pick the first weekday from the system or/and made it available in the configuration;

Another issue is that the time values (hr:min) are taken for scheduling only if one moves the focus outside the time input area, i.e. if the auto-filled time is '03:48' and one enters '09:00' and then presses with the mouse the send-later button, only the hour would be taken, the minutes would still be '48' as the focus hasn't moved outside before the button was pressed. If one moves focus from the time input area to something else before pressing the send-later button, the delivery will be scheduled with the time specified.

(Thunderbird@Ubuntu 16.04)

This review is for a previous version of the add-on (6.3). 

Thanks for your feedback!

While I appreciate your five-star review, I am obliged to point out that your comments above are bug reports / support requests and therefore are not supposed to be included in reviews. ;-) You can send such feedback to jik+sendlater3@kamens.us .

Having said that...

Regarding the first-day-of-week issue, there's no way (as far as I know) in my code for me to query what the user's system settings say the first day of the week should be, so I fix this problem _entirely_ correctly. What I can do instead is add a hidden preference to Send Later for people who want to be able to configure this. I've just done that as you requested: https://github.com/jikamens/send-later/commit/e94033d8f0c133485a9ddcbbf8e5eceb3f9fa1f7 . This change will be in the next release of Send Later which I will release in a week or so.

Regarding the editing-the-time issue, I've fixed it in the current beta release of the add-on. The fix will go out to everybody in a week or so.

Works great Rated 5 out of 5 stars

no complaints and works every time.

This review is for a previous version of the add-on (6.3). 

"Send Later," and essential e-mail tool Rated 5 out of 5 stars

I've been a daily user of the "Send Later" Add-On for Thunderbird for two or more years. At first I thought the primary advantage would be the ability to recall embarrassing messages pushed out with over aggressive use of the send button. Subsequently, I have found it is useful in other ways as well.

Often, soon after crafting an e-mail response to an inquiry, I find the sender has sent an update to that inquiry. By using "Send Later" as standard operating procedure, I'm able to cancel what has become an out-of-date response.

Finally, the "Send At" feature allows me to schedule the delivery of my e-mail message without the need to remind myself to send it out at a later date. The tool is useful when you want to deliver a message to a vacationing colleague, but you want to deliver it after he has gone through the stack of messages that piled up while he/she was away.

This review is for a previous version of the add-on (6.3).  This user has a previous review of this add-on.

Works very well Rated 5 out of 5 stars

The Plugin work very well. Writing E-Mails now and send them later. The Plugin does what it promisses and a little bit more ;)

This review is for a previous version of the add-on (6.3). 

SendLater - great extension Rated 5 out of 5 stars

I find it really useful for both postponing items to later, reminders and recurrent emails.
Would be great to also see a "snooze 1 day" button, which basically forwards an email to self one day later and deletes the current item or something like that.
(well, nicer if it actually hides the original email for a period of time, but that sounds like a different extension)
Thanks for this useful extension!

This review is for a previous version of the add-on (6.3). 

I think you want mailmindr

Take a look at https://addons.mozilla.org/thunderbird/addon/mailmindr/ .

Does what is says on the tin. Rated 5 out of 5 stars

Handy little add-on for scheduling sending messages, which is an oddly missed feature in T/Bird proper. Additionally, the natural language write-what-you-mean time/date recognition is clever (eg, "in 45 minutes" or "4pm tomorrow"), and the dev is active and responsive.

This review is for a previous version of the add-on (6.3). 

Very helpful plugin Rated 4 out of 5 stars

Use it all the time.... works really well!

This review is for a previous version of the add-on (6.3). 

embarrassment saver Rated 5 out of 5 stars

Many, many times I have been glad to review an email, even 15 minutes before it goes out.
And I use it to schedule emails long times ahead, getting the job done early.
I do suggest an option to send a notice back to me before an item is sent, when it is scheduled for a longer time ahead.

This review is for a previous version of the add-on (6.3). 

Not a bad idea

I filed an enhancement request, though I don't know when I'll get to it:

https://github.com/jikamens/send-later/issues/10

You can subscribe to that issue if you have a Github account and get notified if/when I am able to do something with it.

Very useful Rated 5 out of 5 stars

Send Later have everything I need. I like most the recurence option, that allows to send once, minutely, daly, etc. For the minutely for example, I can choose how many minutes and the week.

This review is for a previous version of the add-on (6.3). 

An awesome add-on to time-manage your outgoing e-mails Rated 5 out of 5 stars

Send Later is a very powerful tool to manage your e-mail correspondence precisely the way you want.

This review is for a previous version of the add-on (6.3). 

'Send Later' - very useful if working with people in different time zones Rated 5 out of 5 stars

Invaluable to me; I work with clients who are behind/ahead of me in time zones.
When I get to the office in the morning, in some zones it is their lunch time.
So, i use 'Send Later' to write an email after the office closes in the UK, when they have already gone home.
It is in their inbox first thing in the morning.
Making it more 'real-time', without the recipient knowing that I have stayed late in the office...otherwise they may expect this next time.
I can also present an email / quote from the office, whilst I am actually out of office/on the road.
It is a more professional way of managing time/contacts, in my opinion.
Really good feature; thank you.
(I did donate!)

This review is for a previous version of the add-on (6.3). 

The one app I consider indispensible Rated 5 out of 5 stars

Should be called the Oh Crap saver. If I could I would take jikamens out to lunch. I absolutely love this app. The best part is that unlike boomerang which creates a separate Send Later button, Jikamens incorporated it into the Send button, This forces me to choose between a delayed send or send immediately. The extra click is well worth it. With other send later apps, I mindlessly click Send and am screwed. The other thing I like is the three user defined options. Gmail has one option and only delays up to 30 sec. My brain kicks in around 60 seconds and it is too late. I have mine set for 2, 15, and 60 min. Perfect. Thank you! This app has saved my bacon several times.

This review is for a previous version of the add-on (6.2.1).  This user has a previous review of this add-on.

Einfach klasse Rated 5 out of 5 stars

Einfach klasse. Wenn ich Mails nicht direkt versenden will, hilft mir dieses Plugin perfekt. Ich kann Versanddaten frei definieren oder über definierbare Buttons zeitverzögert versenden. Hilft mir sehr.

This review is for a previous version of the add-on (6.2.1).  This user has a previous review of this add-on.

Very good addon, but why don't you use a button ? Rated 4 out of 5 stars

Good addon, but I suggest to implement a button to display the Send Later window (otherwise we have to go to File > Send Later to display it).
For the moment, I use the "Send Later Button", but it would be best if it were integrated.

This review is for a previous version of the add-on (6.2.1). 

Just What I Was Looking For Rated 5 out of 5 stars

Thank you so much for this - I use it to send out birthday wishes to all my clients on their birthdays. It's awesome!

This review is for a previous version of the add-on (6.2).