I can not send an email to gmail

Question

Hi,

We have created 5 send email addresses in CPANEL/ATLASSIAN CONFLUENCE but they are not sending the emails to external email addresses gmail.

The message is not sent and the following error message is received

This message was created automatically by mail delivery software.

A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:

*******@gmail.com
host gmail-smtp-in.l.google.com [74.125.24.27]
SMTP error from remote mail server after end of data:
550-5.7.1 [103.56.206.240 18] Our system has detected that this message is
550-5.7.1 likely suspicious due to the very low reputation of the sending IP
550-5.7.1 address. To best protect our users from spam, the message has been
550-5.7.1 blocked. Please visit
550 5.7.1 https://support.google.com/mail/answer/188131 for more information. i9-v6si6196222pgv.109 - gsmtp

Reporting-MTA: dns; mercury.plasawebhost.com

Action: failed
Final-Recipient: rfc822;*******@gmail.com
Status: 5.0.0
Remote-MTA: dns; gmail-smtp-in.l.google.com
Diagnostic-Code: smtp; 550-5.7.1 [103.56.206.240 18] Our system has detected that this message is
550-5.7.1 likely suspicious due to the very low reputation of the sending IP
550-5.7.1 address. To best protect our users from spam, the message has been
550-5.7.1 blocked. Please visit
550 5.7.1 https://support.google.com/mail/answer/188131 for more information. i9-v6si6196222pgv.109 - gsmtp

Thanks for your help

Regards

Nic Brough -Adaptavist- · Answer

Right, so gmail suspects you are spamming.  Have a read of the link that they gave you in the response.

Huynh Duy Phuc · Answer

Hi Nic Brough, When i send to gmail, the message was created automatically: mx.google.com #550-5.7.1 [123.30.98.42 19] Our system has detected that this message is 550-5.7.1 likely suspicious due to the very low reputation of the sending 550-5.7.1 domain. To best protect our users from spam, the message has been 550-5.7.1 blocked. Please visit 550 5.7.1 https://support.google.com/mail/answer/188131 for more information. d9si36457394plr.127 - gsmtp ## Các tiêu đề thư gốc: Received: from THT-VN-EX.tht-textile.com.tw ([fe80::ad57:c0db:a22a:adfb]) by THT-VN-EX.tht-textile.com.tw ([fe80::ad57:c0db:a22a:adfb%11]) with mapi id 14.03.0224.002; Mon, 14 Jan 2019 07:15:37 +0700 From: "Phuc Huynh (IT, Vietnam)" To: Huynh Duy Phuc Subject: Test 1401 Thread-Topic: Test 1401 Thread-Index: AdSrnkZi5cnvBV8XS9ic0gK2BJ3BEg== Date: Mon, 14 Jan 2019 00:15:37 +0000 Message-ID: <2A35ED7C-BB97-4056-8CD1-9E0E5BA18FB8@tht-textile.com.tw> Accept-Language: vi-VN, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: Content-Type: text/plain; charset="us-ascii" Content-ID: Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0

Nic Brough -Adaptavist- · Answer

Please read the original question or the responses you are getting for your email for the link.  We can't know what gmail is telling you, we're not sending the emails or getting the responses you are.