thunderbird-addon-subaddress-reply does not work

[JAtC-nl]

I have my own e-mail domain (say @surname.org) and have configured the catch all feature. My standard address is [email protected]. So if some one sends a mail to [email protected] it is delivered in my thunderbird inbox, also are mails to [email protected] delivered to my inbox.
Without your add-on, a reply to a mail in my inbox which is addressed to [email protected] is send from the address [email protected]. Installing your add-on does not change this behavior.
I installed the add-on because I would like to see [email protected] in stead of [email protected] as sender in the above example.
Kind regards Jan Arnoud ten Cate

[JAtC-nl]

Ah, I see, it works as advertised with [email protected] but not with [email protected]. Could you make the add-on work with every *@surname.org?

[CrysK]

I can only agree with that.
An extension to @.surname.org would also be important for me resp. *@ab.surname.org.

Anyway, I do not understand the restriction. It has no use at all.

[Johann-Tree]

To be able to use a . in addition to - and + sign before the @ you can change the line 44 in background.js to the following:
const subaddressRegex = new RegExp(identityMailUser + "[\-+\.].+@" + identityMailDomain, "i");

I tried it out and it works!