1679216 - Mail address not checked upon account creation

Status: RESOLVED DUPLICATE of bug 1658781

(Thunderbird :: Untriaged, defect)

Description

[accounts]

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:83.0) Gecko/20100101 Firefox/83.0

Steps to reproduce:

Create a new account with the same E-Mail-Address as some other account already configured, but maybe with a different server configuration (e.g. by accident or because you just migrated your E-Mail-Address to a new provider).

Actual results:

Account creation succeeds, but it seems like no new account is created internally. Instead, the previous account gets a second entry in the account list in the main window, with all the folders, e-Mails etc. Those two entries seem to refer to the same mail account, as new e-Mail arrives in both. When entering account settings, Thunderbird will warn that an account with that name already exists (even without changing something) but however, no changes to the account name or e-Mail-Adress are possible, as Thunderbird will crash as soon as you leave the text field or the settings page. Deleting the account entirely is the only option to fix this problem.

Expected results:

A new account with the same e-Mail-Address but possibly other server settings gets created and fetches mail from that server.

Comment 1

[Wayne Mery (:wsmwk)]

Is the display correct after Help > restart with addons disabled ?
Also, if you crashed, please post your crash IDs found at help > troubleshooting