Hello,
I am having issues making the SMS to E-mail feature work, which is the main reason why I bought the router.
I've tried first with Gmail and I see this error in the logs:
Fri Jul 4 00:37:29 2025 mail.err sSMTP[17168]: Authorization failed (535 5.7.8 https://support.google.com/mail/?p=BadCredentials 00721157ae682-71665b4d887sm1782107b3.116 - gsmtp)
I am certain that the password is correct, it is the same password I am using in my mail client.
Then I also tried using our company SMTP and I see this error in the logs:
Fri Jul 4 00:10:48 2025 mail.info sSMTP[14244]: SSL connection using TLS_AES_256_GCM_SHA384
Fri Jul 4 00:10:48 2025 mail.err sSMTP[14244]: 501 5.5.2 Syntax error, expected: EHLO domain ()
Which means that the router is not providing a hostname during the EHLO stage.
I am using the latest firmware and tried resetting the router multiple times.
bruce
July 4, 2025, 1:49am
2
Please refer to this post:
Hello,
I tested in the XE3000 with v4.7.4 firmware, and the email forward works if the XE3000 received the SMS.
Config the SMTP sender mailbox with "Gmail":
[image]
The sender Gmail, sent SMS email successfully:
[image]
The receive mailbox, all of them received the SMS contact:
[image]
[image]
[image]
(But I do not know why the Received Gmail put it on the Spam, may be it think the URL is unsafe, but it actually safety.
Please check the SMTP configuration of your XE3000 and test …
Kindly check the SMTP password, it needs to apply from
I did check the password, it is working correctly when I use curl.
Also, the script is sending an invalid EHLO command when using an external SMTP.
Can you point me to the script location so I can fix the EHLO command?
The issue seems to be that GL-XE300 does not provide a domain name to the SMTP server, these are my server logs:
EHLO
501 5.5.2 Syntax error, expected: EHLO domain
a valid SMTP transaction would look like this:
EHLO GL-XE300
250-server.domain.org
250-STARTTLS
250-SMTPUTF8
250-SIZE 104857600
250-REQUIRETLS
250-PIPELINING
250-NO-SOLICITING
250-ENHANCEDSTATUSCODES
250-CHUNKING
250-BINARYMIME
250 8BITMIME
So the question is, how can I make the router provide a valid hostname when sending the email?
bruce
July 4, 2025, 3:24am
6
I tested in the XE300, and the SMS forward to email works ok:
Please check if the username and password of sender mailbox is available, you can test in the third-party email APP with this username and password. Kindly Note, spaces should be removed from copied Google passwords.
Yes, now I am having a different issue, the router is not providing a hostname in the EHLO SMTP command. This is the error I get from Gmail:
Fri Jul 4 10:25:07 2025 mail.err sSMTP[14244]: 501-5.5.4 Empty HELO/EHLO argument not allowed, closing connection.
I also tried with a different SMTP server and I get:
Fri Jul 4 00:10:48 2025 mail.err sSMTP[14244]: 501 5.5.2 Syntax error, expected: EHLO domain ()
The issue is that the router is not providing a hostname in the EHLO command.
