Emails sent out do not arrive at receipient's inbox
I have been using thunderbird for a few years with no issue but recently some of my outgoing emails have not reached external recipients (at random) without any bounced message (internal recipients with same domain are able to receive my emails). Upon checking with my email provider, they told me that the sender email address is missing on their mail log which caused the email to be bounced back to sender. The mail log is as follows:
[2018.02.02] 16:44:24 [41691] Delivery started for fabian@cstgroup.com.my at 4:44:24 PM [2018.02.02] 16:44:46 [41691] Skipping spam checks: User authenticated [2018.02.02] 16:44:49 [41691] Starting local delivery to edmund@cstgroup.com.my [2018.02.02] 16:44:49 [41691] Delivery for to edmund@cstgroup.com.my has completed (Forwarded Delivered) Filter: None [2018.02.02] 16:44:49 [41691] End delivery to edmund@cstgroup.com.my [2018.02.02] 16:44:49 [41691] Sending remote mail for [2018.02.02] 16:44:49 [41691] Initiating connection to 117.53.152.22 [2018.02.02] 16:44:49 [41691] Connecting to 117.53.152.22:587 (Id: 1) [2018.02.02] 16:44:49 [41691] Connection to 117.53.152.22:587 from 110.4.46.210:56021 succeeded (Id: 1) [2018.02.02] 16:44:49 [41691] RSP: 220 spfilter-3.sew01.mschosting.com ESMTP Exim 128741 Fri, 02 Feb 2018 16:44:43 +0800 [2018.02.02] 16:44:49 [41691] CMD: EHLO smtp9.mschosting.com [2018.02.02] 16:44:49 [41691] RSP: 250-spfilter-3.sew01.mschosting.com Hello smtp9.mschosting.com [110.4.46.210] [2018.02.02] 16:44:49 [41691] RSP: 250-SIZE [2018.02.02] 16:44:49 [41691] RSP: 250-8BITMIME [2018.02.02] 16:44:49 [41691] RSP: 250-DSN [2018.02.02] 16:44:49 [41691] RSP: 250-AUTH PLAIN LOGIN [2018.02.02] 16:44:49 [41691] RSP: 250-STARTTLS [2018.02.02] 16:44:49 [41691] RSP: 250 HELP [2018.02.02] 16:44:49 [41691] CMD: STARTTLS [2018.02.02] 16:44:49 [41691] RSP: 220 TLS go ahead [2018.02.02] 16:44:49 [41691] CMD: EHLO smtp9.mschosting.com [2018.02.02] 16:44:49 [41691] RSP: 250-spfilter-3.sew01.mschosting.com Hello smtp9.mschosting.com [110.4.46.210] [2018.02.02] 16:44:49 [41691] RSP: 250-SIZE [2018.02.02] 16:44:49 [41691] RSP: 250-8BITMIME [2018.02.02] 16:44:49 [41691] RSP: 250-DSN [2018.02.02] 16:44:49 [41691] RSP: 250-AUTH PLAIN LOGIN [2018.02.02] 16:44:49 [41691] RSP: 250 HELP [2018.02.02] 16:44:49 [41691] CMD: AUTH LOGIN [2018.02.02] 16:44:49 [41691] RSP: 334 VXNlcm5hbWU6 [2018.02.02] 16:44:50 [41691] RSP: 334 UGFzc3dvcmQ6 [2018.02.02] 16:44:50 [41691] RSP: 235 Authentication succeeded [2018.02.02] 16:44:50 [41691] CMD: MAIL FROM:< > SIZE=5184964 [2018.02.02] 16:44:50 [41691] RSP: 250 OK [2018.02.02] 16:44:50 [41691] CMD: RCPT TO:<fabuzap@gmail.com> [2018.02.02] 16:44:50 [41691] RSP: 250 Accepted [2018.02.02] 16:44:50 [41691] CMD: RCPT TO:<jagdeep_56@yahoo.com> [2018.02.02] 16:44:50 [41691] RSP: 550 Legitimate bounces are never sent to more than one recipient. [2018.02.02] 16:44:50 [41691] CMD: DATA [2018.02.02] 16:44:50 [41691] RSP: 354 Enter message, ending with "." on a line by itself [2018.02.02] 16:45:09 [41691] RSP: 250 OK id=1ehWxf-0007t4-W6 [2018.02.02] 16:45:09 [41691] CMD: QUIT [2018.02.02] 16:45:09 [41691] RSP: 221 spfilter-3.sew01.mschosting.com closing connection [2018.02.02] 16:45:09 [41691] Delivery for to fabuzap@gmail.com has completed (Delivered) [2018.02.02] 16:45:09 [41691] Delivery for to jagdeep_56@yahoo.com has completed (Bounced)
The highlighted line is: [2018.02.02] 16:44:50 [41691] CMD: MAIL FROM:< > SIZE=5184964
This does not happen when I send out emails directly from the webmail of the service provider. All of our users are experiencing the same issue lately, is this an issue between thunderbird and our email service provider?
Really in distress as we are all heavily reliant on Thunderbird. Any help would be appreciated, thanks in advance.
Wšykne wótegrona (3)
What shows in "from:" when you compose the email? When you open the mail in the sent folder and press Ctrl +U what is shown in the From: header field?
Matt said
What shows in "from:" when you compose the email? When you open the mail in the sent folder and press Ctrl +U what is shown in the From: header field?
When i compose the message it shows from fabian@cstgroup.com.my.
The header field from my sent folder for this particular email which did not go through is as follows:
From - Fri Feb 02 16:44:35 2018 X-Mozilla-Status: 0001 X-Mozilla-Status2: 00800000 X-Mozilla-Keys: BCC: fabuzap@gmail.com To: jagdeep_56@yahoo.com Cc: Non Motor <nonmotor@cstgroup.com.my> From: Fabian <fabian@cstgroup.com.my> Subject: AIG Travel Insurance Message-ID: <df0034f1-1508-09f3-0a2c-49edfe992c45@cstgroup.com.my> Date: Fri, 2 Feb 2018 16:44:16 +0800 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101
Thunderbird/52.5.2
MIME-Version: 1.0 Content-Type: multipart/mixed;
boundary="------------6BECEB77A5555A39EAACAFC8"
This is a multi-part message in MIME format.
6BECEB77A5555A39EAACAFC8
Content-Type: multipart/alternative;
boundary="------------CE3687DA0CC28846E08EED37"
CE3687DA0CC28846E08EED37
Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit
Well that obviously has a from. So what might be interfering with the mail after Thunderbird does it's thing other than an anti virus I do not know