# Amazon SES Error
**URL:** https://forum.mautic.org/t/amazon-ses-error/25723
**Category:** Mautic 4 Install/Upgrade Support
**Created:** [October 18, 2022, 11:02am UTC](https://forum.mautic.org/t/amazon-ses-error/25723 "2022-10-18T11:02:25Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@m.rashwan](https://forum.mautic.org/u/m.rashwan)
#### Post date: [October 18, 2022, 11:02am UTC](https://forum.mautic.org/t/amazon-ses-error/25723/1 "2022-10-18T11:02:25Z")
Dears
Now i`m new user in mautic i have install mautic v4.4.3 im trying to setup the email settings with amazon SES i have add all the required info but when im try to test the cennection it was fail
Error
Failed to authenticate on SMTP server with username “obfuscated” using 1 possible authenticators. Authenticator LOGIN returned Expected response code 235 but got code “535”, with message "535 Authentication Credentials Invalid " Log data: ++ Starting
Can any one here till me waht can i dp to sovle this problem
Thanks
_Admin edit: Obfuscated username_
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### Author:  [@silavapi](https://forum.mautic.org/u/silavapi)
#### Post date: [October 18, 2022, 11:12am UTC](https://forum.mautic.org/t/amazon-ses-error/25723/2 "2022-10-18T11:12:19Z")
Looks like the username and password that you are trying to use are invalid - maybe check they are correct and using the right region etc?
I have removed the username you posted from your message above.