messages to gmail addresses from Thunderbird are blocked
We use Thunderbird to send and receive mail through our Sonic accounts. Recently mail sent to gmail addresses is blocked as:
The original message was received at Thu, 3 Mar 2022 12:39:17 -0800 from 192-184-193-203.static.sonic.net [192.184.193.203]
----- The following addresses had permanent fatal errors -----
< ... @gmail.com>
(reason: 550-5.7.26 This message does not have authentication information or fails to)
----- Transcript of session follows -----
... while talking to gmail-smtp-in.l.google.com.: >>> DATA <<< 550-5.7.26 This message does not have authentication information or fails to <<< 550-5.7.26 pass authentication checks. To best protect our users from spam, the <<< 550-5.7.26 message has been blocked. Please visit <<< 550-5.7.26 https://support.google.com/mail/answer/81126#authentication for more <<< 550 5.7.26 information. bc20-20020a656d94000000b00378a29031dasi2994966pgb.228 - gsmtp 554 5.0.0 Service unavailable
Reporting-MTA: dns; d.mail.sonic.net
Received-From-MTA: DNS; 192-184-193-203.static.sonic.net
Arrival-Date: Thu, 3 Mar 2022 12:39:17 -0800
Final-Recipient: RFC822; ... @gmail.com X-Actual-Recipient: rfc822; ... @gmail.com Action: failed Status: 5.7.26 Remote-MTA: DNS; gmail-smtp-in.l.google.com Diagnostic-Code: SMTP; 550-5.7.26 This message does not have authentication information or fails to Last-Attempt-Date: Thu, 3 Mar 2022 12:39:18 -0800
However, messages sent through Sonic's browser-based webmail site (using Firefox) go to gmail OK, as:
The original message was received at Thu, 3 Mar 2022 13:07:30 -0800 from webmail.b.apps.sonic.net [64.142.122.9]
----- The following addresses had successful delivery notifications -----
<[email protected]> (relayed to non-DSN-aware mailer)
----- Transcript of session follows -----
< ... @gmail.com>... relayed; expect no further notifications
Reporting-MTA: dns; d.mail.sonic.net
Received-From-MTA: DNS; webmail.b.apps.sonic.net
Arrival-Date: Thu, 3 Mar 2022 13:07:30 -0800
Final-Recipient: RFC822; ... @gmail.com X-Actual-Recipient: rfc822; ... @gmail.com Action: relayed (to non-DSN-aware mailer) Status: 2.1.5 Remote-MTA: DNS; gmail-smtp-in.l.google.com Diagnostic-Code: SMTP; 250 2.1.5 OK a2-20020a17090a854200b001bc2c281760si3072835pjw.2 - gsmtp Last-Attempt-Date: Thu, 3 Mar 2022 13:07:32 -0800
Return-Path: < ... @sonic.net>
Received: from webmail.sonic.net (webmail.b.apps.sonic.net [64.142.122.9])
(authenticated bits=0)
by d.mail.sonic.net (8.16.1/8.16.1) with ESMTPA id 223L7UHp029533
for <[email protected]>; Thu, 3 Mar 2022 13:07:30 -0800
MIME-Version: 1.0
Date: Thu, 03 Mar 2022 13:07:30 -0800
From: Howard & Cathy < ... @sonic.net>
To: ... @gmail.com
Subject: test
Organization: Earth
Message-ID: <[email protected]>
User-Agent: Roundcube Webmail/1.3.17
X-Sonic-Auth: bA0pGZkJkMJ63AAE3MbOgzF8NA1+DLcprka4wOMK1+sbYI5URRdFEm1fsNHmJdzdJYx3vC4GndzhmO0a3A91AIBT47mod3oKMN/cnUevC/4=
Content-Type: multipart/alternative;
boundary="=_9d48719f616920f1a22c6ffbd34dac39"
X-Sonic-CAuth: UmFuZG9tSVYyo1nfkFFHcVDeO2qLt4HSCCgqVunmOut2jZF+9Ubv4XrT9uC3BN0S1H+JNsR1ttjmcaALvEZgamxd8awqEBtahLlP8SMNxqo= X-Sonic-ID: C;FG5Q8DWb7BGx5f6DewJq1A== M;/BZW8DWb7BGx5f6DewJq1A== X-Spam-Flag: No X-Sonic-Spam-Details: -0.0/5.0 by cerberusd
What Thunderbird settings need to change to send to gmail addresses? All other addresses work fine. Messages to numerous gmail accounts worked until a few days ago.
Thanks, Howard
Modified by James
Chosen solution
Actually, changing some Thunderbird settings did solve the problem. Our From email address was for a domain different from Sonic's outgoing SMTP server. I changed the From email address to be from sonic.net, and messages to gmail addresses are no longer blocked. Our Thunderbird settings had been the same for years and worked fine until about a week ago. I suspect Google revised their filter rules recently and caused this issue.
Read this answer in context 👍 1All Replies (5)
Gmail has high security settings, more than many others. This is generally the issue when the receiving mail supporter (in this case, Gmail) cannot confirm that the sending domain matches the domain of the host sending site. For example, if your business is pumpkinpie.com and your business hosting provider is bluehost.com, Gmail sees that the actual host domain is bluehost and looks for confirmation that the settings for cakes.com are reflected there. This ties to DKIM and SPF settings on the server and are beyond anything TB can do. My suggestion is to check with your hosting provider. This is generally a simple fix by web host. This is not an issue that TB can correct. (Background: spammers like to send emails, pretending to be someone else, and that is what Gmail is trying to prevent.)
Chosen Solution
Actually, changing some Thunderbird settings did solve the problem. Our From email address was for a domain different from Sonic's outgoing SMTP server. I changed the From email address to be from sonic.net, and messages to gmail addresses are no longer blocked. Our Thunderbird settings had been the same for years and worked fine until about a week ago. I suspect Google revised their filter rules recently and caused this issue.
Where do you find "From email address" field in TB settings ?
In the Linux version menu bar, I click Edit, then Account Settings. In the new window's side bar, click the bold account name. The Account Settings pane has a Default Identity. The entry in the email address field there is what appears as the From address in a message header.
After checking on my side, domain name is matching smtp server name. So Howard's solution not relevant in my case though the symptoms are the same :
This is the mail system at host smtp3-g21.free.fr.
I'm sorry to have to inform you that your message could not be delivered to one or more recipients. It's attached below.
For further assistance, please send mail to postmaster.
If you do so, please include this problem report. You can delete your own text from the attached returned message.
The mail system
< ... @gmail.com>: host
gmail-smtp-in.l.google.com[64.233.166.26] said: 550-5.7.26 This message does not have authentication information or fails to 550-5.7.26 pass authentication checks. To best protect our users from spam, the 550-5.7.26 message has been blocked. Please visit 550-5.7.26 https://support.google.com/mail/answer/81126#authentication for more 550 5.7.26 information. r14-20020adfda4e000000b0020377227252si6019796wrl.398 - gsmtp (in reply to end of DATA command)
Reporting-MTA: dns; smtp3-g21.free.fr
X-Postfix-Queue-ID: BF3B913F899
X-Postfix-Sender: rfc822; [email protected]
Arrival-Date: Fri, 11 Mar 2022 19:57:12 +0100 (CET)
Final-Recipient: rfc822; ... @gmail.com Original-Recipient: rfc822; ... @gmail.com Action: failed Status: 5.7.26 Remote-MTA: dns; gmail-smtp-in.l.google.com Diagnostic-Code: smtp; 550-5.7.26 This message does not have authentication
information or fails to 550-5.7.26 pass authentication checks. To best protect our users from spam, the 550-5.7.26 message has been blocked. Please visit 550-5.7.26 https://support.google.com/mail/answer/81126#authentication for more 550 5.7.26 information. r14-20020adfda4e000000b0020377227252si6019796wrl.398 - gsmtp
Modified by James