# Mautic went offline after mid changes to Email Settings in Configuration on Dashboard

**URL:** <https://forum.mautic.org/t/mautic-went-offline-after-mid-changes-to-email-settings-in-configuration-on-dashboard/32158>\
**Category:** Product Support\
**Created:** [May 25, 2024, 1:49am UTC](https://forum.mautic.org/t/mautic-went-offline-after-mid-changes-to-email-settings-in-configuration-on-dashboard/32158 "2024-05-25T01:49:32Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![dylanwalsh](https://avatars.discourse-cdn.com/v4/letter/d/bbe5ce/32.png) [@dylanwalsh](https://forum.mautic.org/u/dylanwalsh)\
**Post date:** [May 25, 2024, 1:49am UTC](https://forum.mautic.org/t/mautic-went-offline-after-mid-changes-to-email-settings-in-configuration-on-dashboard/32158/1 "2024-05-25T01:49:32Z")

</div>

**My software Information**

My Mautic version is: Mautic 5.0.3 - app/prod (env: prod, debug: false)  
My PHP version is: 8.1.28  
My Database type and version is: 10.3.39-MariaDB

**My problem**

My problem is: After changing the bounce email in Configuration on Mautic Dashboard, the site went offline.

_These errors are showing in the log:_

```auto
[2024-05-25T01:14:12.355881+00:00] mautic.NOTICE: PHP Notice - Unknown: Can not authenticate to IMAP server: [AUTHENTICATIONFAILED] Authentication failed. (errflg=2) - in file Unknown - at line 0 [] {"hostname":"vps2740909","pid":60309}
[2024-05-25T01:14:12.355916+00:00] mautic.NOTICE: PHP Notice - Unknown: Retrying PLAIN authentication after [AUTHENTICATIONFAILED] Authentication failed. (errflg=1) - in file Unknown - at line 0 [] {"hostname":"vps2740909","pid":60309}
[2024-05-25T01:14:12.355945+00:00] mautic.NOTICE: PHP Notice - Unknown: Retrying PLAIN authentication after [AUTHENTICATIONFAILED] Authentication failed. (errflg=1) - in file Unknown - at line 0 [] {"hostname":"vps2740909","pid":60309}
[2024-05-25T01:14:12.355973+00:00] mautic.NOTICE: PHP Notice - Unknown: Can not authenticate to IMAP server: [AUTHENTICATIONFAILED] Authentication failed. (errflg=2) - in file Unknown - at line 0 [] {"hostname":"vps2740909","pid":60309}
[2024-05-25T01:14:12.356001+00:00] mautic.NOTICE: PHP Notice - Unknown: Retrying PLAIN authentication after [AUTHENTICATIONFAILED] Authentication failed. (errflg=1) - in file Unknown - at line 0 [] {"hostname":"vps2740909","pid":60309}
[2024-05-25T01:14:12.356028+00:00] mautic.NOTICE: PHP Notice - Unknown: Retrying PLAIN authentication after [AUTHENTICATIONFAILED] Authentication failed. (errflg=1) - in file Unknown - at line 0 [] {"hostname":"vps2740909","pid":60309}
[2024-05-25T01:14:12.356055+00:00] mautic.NOTICE: PHP Notice - Unknown: Can not authenticate to IMAP server: [AUTHENTICATIONFAILED] Authentication failed. (errflg=2) - in file Unknown - at line 0 [] {"hostname":"vps2740909","pid":60309}

```

_After clearing cache from via command, this is what I got:_

```auto
In AppKernelProdContainer.php line 11240:

  The parameter "0!riman","use_attachments":""},"EmailBundle_bounces":{"address":"bounces@xxxxxxxx.org","host":"mail.xxxxx.org","port":"993","
  encryption":"\/ssl","user":"bounces@xxxxxxxx.org","password":"xxxxxxx" must be defined.

```

**Steps I have tried to fix the problem:**

Cleared cache via **php bin/console cache:clear**  
Restarted Openlitespeed  
Restart mariadb  
Reboot entire server

---

<div class="post-metadata">

**Author:** ![dylanwalsh](https://avatars.discourse-cdn.com/v4/letter/d/bbe5ce/32.png) [@dylanwalsh](https://forum.mautic.org/u/dylanwalsh)\
**Post date:** [May 27, 2024, 4:08pm UTC](https://forum.mautic.org/t/mautic-went-offline-after-mid-changes-to-email-settings-in-configuration-on-dashboard/32158/2 "2024-05-27T16:08:45Z")

</div>

Can anyone help? I’m still stucked.

---

<div class="post-metadata">

**Author:** ![dylanwalsh](https://avatars.discourse-cdn.com/v4/letter/d/bbe5ce/32.png) [@dylanwalsh](https://forum.mautic.org/u/dylanwalsh)\
**Post date:** [July 2, 2024, 9:22am UTC](https://forum.mautic.org/t/mautic-went-offline-after-mid-changes-to-email-settings-in-configuration-on-dashboard/32158/3 "2024-07-02T09:22:12Z")

</div>

I am still unable to resolve this…