# Cannot login as "XXX@XXX". Please check if the email address and the password are correct

**URL:** <https://forum.delta.chat/t/cannot-login-as-xxx-xxx-please-check-if-the-email-address-and-the-password-are-correct/1202>\
**Category:** Mutual Help\
**Created:** [September 14, 2020, 12:06pm UTC](https://forum.delta.chat/t/cannot-login-as-xxx-xxx-please-check-if-the-email-address-and-the-password-are-correct/1202 "2020-09-14T12:06:06Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![zone42](https://forum.delta.chat/user_avatar/forum.delta.chat/zone42/32/805_2.png) [@zone42](https://forum.delta.chat/u/zone42)\
**Post date:** [September 14, 2020, 12:06pm UTC](https://forum.delta.chat/t/cannot-login-as-xxx-xxx-please-check-if-the-email-address-and-the-password-are-correct/1202/1 "2020-09-14T12:06:06Z")

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**Delta Chat version**

1.12.0 (Linux Desktop) / 1.12.5 (Android)

**Expected behavior**

It should be asked whether the new certificate should be accepted!

**Actual behavior**

Message: _Cannot login as “XXX@XXX”. Please check if the email address and the password are correct._

But no way to check/update email address, password or certificate. ☹

**Steps to reproduce the problem**

1. Configure account and use it.
2. Change TLS certificate at the mail server.
3. Try to use the account again.

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**Author:** ![zone42](https://forum.delta.chat/user_avatar/forum.delta.chat/zone42/32/805_2.png) [@zone42](https://forum.delta.chat/u/zone42)\
**Post date:** [September 14, 2020, 1:36pm UTC](https://forum.delta.chat/t/cannot-login-as-xxx-xxx-please-check-if-the-email-address-and-the-password-are-correct/1202/2 "2020-09-14T13:36:31Z")

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I’ve create a bug issue for this.

See [https://github.com/deltachat/deltachat-core-rust/issues/1910](https://github.com/deltachat/deltachat-core-rust/issues/1910)

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**Author:** ![link2xt](https://forum.delta.chat/user_avatar/forum.delta.chat/link2xt/32/1971_2.png) [@link2xt](https://forum.delta.chat/u/link2xt)\
**Post date:** [September 14, 2020, 5:49pm UTC](https://forum.delta.chat/t/cannot-login-as-xxx-xxx-please-check-if-the-email-address-and-the-password-are-correct/1202/3 "2020-09-14T17:49:18Z")

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Delta Chat does not store TLS certificate fingerprints, so it does not care if you have changed it or not. In Automatic mode, it validates certificates for known servers from provider database, and accepts self-signed certificates for other providers. If you did not enable Strict certificate checks in advanced settings, it should accept any correctly generated certificate.

This message means that TLS connection has succeeded, but authentication failed. If you want to change the password, you can do so in the connection settings and run the configuration process again.

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**Author:** ![zone42](https://forum.delta.chat/user_avatar/forum.delta.chat/zone42/32/805_2.png) [@zone42](https://forum.delta.chat/u/zone42)\
**Post date:** [September 16, 2020, 7:04am UTC](https://forum.delta.chat/t/cannot-login-as-xxx-xxx-please-check-if-the-email-address-and-the-password-are-correct/1202/4 "2020-09-16T07:04:22Z")

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To avoid a double discussion, please continue with the topic in [https://github.com/deltachat/deltachat-core-rust/issues/1910](https://github.com/deltachat/deltachat-core-rust/issues/1910)!

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**Author:** ![r10s](https://forum.delta.chat/user_avatar/forum.delta.chat/r10s/32/1513_2.png) [@r10s](https://forum.delta.chat/u/r10s)\
**Post date:** [October 6, 2026, 2:59pm UTC](https://forum.delta.chat/t/cannot-login-as-xxx-xxx-please-check-if-the-email-address-and-the-password-are-correct/1202/5 "2026-10-06T14:59:23Z")

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