Could not authenticate

  • Resolved kcsmith5511

    (@kcsmith5511)


    3 years, 3 months ago

    My outlook email is working fine but my email testing is giving this error below. Does anyone have any advice on how I can fix this issue? Thanks

    Versions:
WordPress: 5.8.2
WordPress MS: No
PHP: 7.3.33
WP Mail SMTP: 3.2.1

Params:
Mailer: smtp
Constants: No
ErrorInfo: SMTP Error: Could not authenticate.
Host: smtp.relisolutions.us
Port: 587
SMTPSecure: string(0) ""
SMTPAutoTLS: bool(false)
SMTPAuth: bool(true)

Server:
OpenSSL: OpenSSL 1.1.1l 24 Aug 2021

Debug:
Email Source: WP Mail SMTP
Mailer: Other SMTP
SMTP Error: Could not authenticate.

SMTP Debug:
2021-12-09 19:57:29 Connection: opening to smtp.relisolutions.us:587, timeout=300, options=array()

2021-12-09 19:57:29 Connection: opened

2021-12-09 19:57:29 SERVER -> CLIENT: 220-custom2.adpixel.biz ESMTP Exim 4.94.2 #2 Thu, 09 Dec 2021 14:57:29 -0500 220-We do not authorize the use of this system to transport unsolicited, 220 and/or bulk e-mail.

2021-12-09 19:57:29 CLIENT -> SERVER: EHLO relisolutions.us

2021-12-09 19:57:29 SERVER -> CLIENT: 250-custom2.adpixel.biz Hello relisolutions.us [195.201.241.180]250-SIZE 52428800250-8BITMIME250-PIPELINING250-PIPE_CONNECT250-AUTH PLAIN LOGIN250-STARTTLS250 HELP

2021-12-09 19:57:29 CLIENT -> SERVER: AUTH LOGIN

2021-12-09 19:57:29 SERVER -> CLIENT: 334 VXNlcm5hbWU6

2021-12-09 19:57:29 CLIENT -> SERVER: [credentials hidden]

2021-12-09 19:57:29 SERVER -> CLIENT: 334 UGFzc3dvcmQ6

2021-12-09 19:57:29 CLIENT -> SERVER: [credentials hidden]

2021-12-09 19:57:31 SERVER -> CLIENT: 535 Incorrect authentication data

2021-12-09 19:57:31 SMTP ERROR: Password command failed: 535 Incorrect authentication data

SMTP Error: Could not authenticate.

2021-12-09 19:57:31 CLIENT -> SERVER: QUIT

2021-12-09 19:57:31 SERVER -> CLIENT: 221 custom2.adpixel.biz closing connection

2021-12-09 19:57:31 Connection: closed

SMTP Error: Could not authenticate.
Viewing 4 replies - 1 through 4 (of 4 total)

  • Hi @kcsmith5511,

    Thanks for reaching out! Usually, that would be an incorrect SMTP configuration. You should use the TLS encryption with port 587. Please make that correction and if you still face issues, contact your web host provider with this full SMTP log to look into the issue. They might be blocking outbound SMTP connection.

    I hope this helps!

    Thread Starter kcsmith5511

    (@kcsmith5511)

    I try that solution but the system still failed. Thanks again for trying to help us out.

    Hi @kcsmith5511,

    Thanks for the confirmation. In that case, your web host might be blocking the outbound SMTP connection. Please contact your web host with the full SMTP log to look into the issue.

    Have a good one! ??

    Thread Starter kcsmith5511

    (@kcsmith5511)

    Okay, I will get with my hosting on this issue. Thanks

Viewing 4 replies - 1 through 4 (of 4 total)
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