DATA command terminated after receiving 0 bytes Brendon
    DATA command terminated after receiving 0 bytes Synametrics Support

From: Brendon
Date: 11/18/24 11:23 PM
Topic: DATA command terminated after receiving 0 bytes
Type: General Discussions
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Hi,

We have a few devices that are failing to rely email through our Xeams server. This appears to be device specific as other devices on the same network with the same smtp setting that are working.

error below:

4736] ************ New connection from: <ip address>
2024-11-19 14:11:44,807 - [ 4736] C --> EHLO
2024-11-19 14:11:44,808 - [ 4736] S <-- 250- <ip address> Pleased to meet you
2024-11-19 14:11:44,808 - [ 4736] S <-- 250-SIZE 20971520
2024-11-19 14:11:44,808 - [ 4736] S <-- 250-AUTH LOGIN PLAIN CRAM-MD5
2024-11-19 14:11:44,808 - [ 4736] S <-- 250-AUTH=LOGIN PLAIN CRAM-MD5
2024-11-19 14:11:44,808 - [ 4736] S <-- 250 OK
2024-11-19 14:11:44,815 - [ 4736] C --> mail from:<from address>
2024-11-19 14:11:44,815 - [ 4736] S <-- 250 OK
2024-11-19 14:11:44,820 - [ 4736] C --> rcpt to:<to address>
2024-11-19 14:11:44,820 - [ 4736] S <-- 250 OK
2024-11-19 14:11:44,826 - [ 4736] C --> DATA
2024-11-19 14:11:44,826 - [ 4736] S <-- 354 Start mail input; end with <CRLF>.<CRLF>
2024-11-19 14:11:44,829 - [ 4736] ~~~~~~~~~~~~ Connection Terminated (29:999999) DATA command terminated after receiving 0 bytes.

I am unsure exactly what the Connection Terminated  message is telling me. Any direction or help with this issue would be very much welcomed. Emails were coming through from this device prior to the XEAMs server

cheers,

Brendon 

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From: Synametrics Support
Date: 11/19/24 8:13 AM
Topic: DATA command terminated after receiving 0 bytes
Type: General Discussions
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Brendon,

How are you these devices? I ask because you have not enabled STARTTLS in Xeams. Depending upon how the device is configured, it may decide not to deliver an email if encryption cannot be used. Even if this is not the root cause, you should enable encryption for SMTP. Refer to https://www.xeams.com/starttls.htm for instructions.

Do you see any error on the device itself?

Also, you mentioned the device was working prior to using Xeams. What server were you using before Xeams?

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