Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

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
Open

Can I configure Thunderbird to reply from the To: address by detault?

SheamusPatt replied
SheamusPatt

My email provider provides "Disposable Email Addresses" - aliases which still direct mail to my inbox but don't expose my primary email to any web sites etc. I provide them to. It's very handy for registering for mailing lists, product vendors etc. since if one gets leaked, it's no big deal. I can drop the email again, but at least I know who was responsible for leaking it (I still get spam to my old Myspace account). My problem is that I'll occasionally have a need to reply such an email, and by default my From: address is my primary email address, not the one in the To: header. This is confusing to the recipient (since it's from some unknown email) and also exposes my email unintentionally. Is there any way to configure Thunderbird to always reply using the To: address? If there are multiple To: or CC: addresses, it could perhaps be specified with a wildcard matching any of my aliases. I can do it with Identities, I know, but I have to set that up before replying and I frequently forget.

My email provider provides "'''Disposable Email Addresses'''" - aliases which still direct mail to my inbox but don't expose my primary email to any web sites etc. I provide them to. It's very handy for registering for mailing lists, product vendors etc. since if one gets leaked, it's no big deal. I can drop the email again, but at least I know who was responsible for leaking it (I still get spam to my old Myspace account). My problem is that I'll occasionally have a need to reply such an email, and by default my From: address is my primary email address, not the one in the To: header. This is confusing to the recipient (since it's from some unknown email) and also exposes my email unintentionally. Is there any way to configure Thunderbird to always reply using the To: address? If there are multiple To: or CC: addresses, it could perhaps be specified with a wildcard matching any of my aliases. I can do it with Identities, I know, but I have to set that up before replying and I frequently forget.

All Replies (2)

In your account configuration, you can put email addresses in the "Reply to" field. These addresses will be shown to the recipients as reply to address.

You can also do it when you reply the email - put your address in the "reply to" field. It is just for that email.

That doesn't really solve my problem, which is that I tend to reply without doing any of those things. I don't want them to see my primary email at all. If I remember to set up an identity for one of my disposable emails, there's no need for the Reply-To as it's the disposable email (which is the only one I want them to see). I currently have over 600 Disposable Email Addresses. When I remember, I'll set up another Identity in Account Settings which doesn't need a Reply-To as it would be the same as the From/To address. What I want is a rule that says:

- If an email is To: "*.xyz@myserver.abc" - Then set From: to that To: address - otherwise regular rules apply

where *.xyz@amyserver.abc is a rule matching any of my disposable emails (Zimbra-based servers like the one I'm on always have that common suffix before @domain, unique to my email account).

If you're familiar with GMail or HotMail "plus addressing" a rule might look like:

    myusername+*@gmail.com

which you'd like to retain when replying (else further replies will be back to your main email, sans the +tag, so won't be sorted the same as the initial email. (Aside: the advantage of the Disposable EMail is that my primary email is hidden, whereas with plus addressing you just need to remove the +tag to expose it).

Ask a question

You must log in to your account to reply to posts. Please start a new question, if you do not have an account yet.