Error: +QSMTPPUT: -7

Hi!

I bought a trail camera that uses a Quectel GSM module. I filled out the SMTP server correctly and whatnot, but it doesn’t seem to send the images through e-mail.
I checked the logs and last thing I see is +QSMTPPUT: -7, which I don’t find on your manuals.

What could it be ?

Here are the complete logs:

Logs
2023/02/20 22:16:36 : ATI
2023/02/20 22:16:38 : AT+CSQ
2023/02/20 22:16:38 : AT+CSQ
2023/02/20 22:16:38 : +CSQ: 31,0
2023/02/20 22:16:38 : OK

2023/02/20 22:16:38 : AT+CREG?
2023/02/20 22:16:38 : AT+CREG?
2023/02/20 22:16:39 : +CREG: 0,1
2023/02/20 22:16:39 : OK

2023/02/20 22:16:39 : AT+QFDEL="RAM:*"
2023/02/20 22:16:39 : AT+QFDEL="RAM:*"
2023/02/20 22:16:39 : OK

2023/02/20 22:16:39 : AT+QSMTPCLR
2023/02/20 22:16:39 : AT+QSMTPCLR
2023/02/20 22:16:40 : OK

2023/02/20 22:16:40 : AT+QIFGCNT=0
2023/02/20 22:16:40 : AT+QIFGCNT=0
2023/02/20 22:16:40 : OK

2023/02/20 22:16:40 : AT+QICSGP=1,"internet"
2023/02/20 22:16:40 : AT+QICSGP=1,"internet"
2023/02/20 22:16:40 : OK

2023/02/20 22:16:40 : AT+QILOCIP
2023/02/20 22:16:41 : AT+QILOCIP
2023/02/20 22:16:41 : 100.119.210.104
2023/02/20 22:16:41 : AT+QSSLCFG="smtpstyle",0
2023/02/20 22:16:41 : AT+QSSLCFG="smtpstyle",0
2023/02/20 22:16:41 : OK

2023/02/20 22:16:41 : AT+QSMTPUSER="email@gmail.com"
2023/02/20 22:16:41 : AT+QSMTPUSER="email@gmail.com"
2023/02/20 22:16:42 : OK

2023/02/20 22:16:42 : AT+QSMTPPWD="******"
2023/02/20 22:16:42 : AT+QSMTPPWD="password"
2023/02/20 22:16:42 : OK

2023/02/20 22:16:42 : AT+QSMTPNAME="CAM000_20_02_2023_22_16_42"

2023/02/20 22:16:42 : AT+QSMTPNAME="CAM000_20_02_2023_22_16_42"
2023/02/20 22:16:42 : OK

2023/02/20 22:16:42 : AT+QSMTPADDR="email@gmail.com"
2023/02/20 22:16:43 : AT+QSMTPADDR="email@gmail.com"
2023/02/20 22:16:43 : OK

2023/02/20 22:16:43 : AT+QSMTPSRV="smtp.gmail.com",465
2023/02/20 22:16:43 : AT+QSMTPSRV="smtp.gmail.com",465
2023/02/20 22:16:43 : OK

2023/02/20 22:16:43 : AT+QSMTPDST=1,1,"recipientemail1@gmail.com"
2023/02/20 22:16:43 : AT+QSMTPDST=1,1,"recipientemail1@gmail.com"
2023/02/20 22:16:44 : OK

2023/02/20 22:16:44 : AT+QSMTPDST=1,2,"recipientemail2@gmail.com"
2023/02/20 22:16:44 : AT+QSMTPDST=1,2,"recipientemail2@gmail.com"
2023/02/20 22:16:44 : OK

2023/02/20 22:16:44 : AT+QSMTPSUB=0,"CAM000_20_02_2023_22_16_44"

2023/02/20 22:16:44 : AT+QSMTPSUB=0,"CAM000_20_02_2023_22_16_44"
2023/02/20 22:16:44 : OK

2023/02/20 22:16:44 : AT+QSMTPBODY=1,3
2023/02/20 22:16:45 : AT+QSMTPBODY=1,3
2023/02/20 22:16:45 : OK

2023/02/20 22:16:45 : CONNECT
2023/02/20 22:16:47 : +QSMTPBODY: 57
2023/02/20 22:16:47 : AT+QFUPL="RAM:PICT49742.JPG",49742
2023/02/20 22:16:48 : AT+QFUPL="RAM:PICT49742.JPG",49742
2023/02/20 22:16:48 : CONNECT
2023/02/20 22:16:57 : +QFUPL: 49742,cc00
2023/02/20 22:16:58 : OK

2023/02/20 22:16:58 : AT+QSMTPATT="RAM:PICT49742.JPG"
2023/02/20 22:16:58 : AT+QSMTPATT="RAM:PICT49742.JPG"
2023/02/20 22:16:58 : OK

2023/02/20 22:16:58 : AT+QSMTPPUT=300
2023/02/20 22:16:58 : AT+QSMTPPUT=300
2023/02/20 22:16:58 : OK

2023/02/20 22:17:10 : +QSMTPPUT: -7

For obvious reasons, I changed the emails and the passwords.

Hi

Error -7 is: PEER_CLOSE

Please refer to the steps in the manual I emailed you

@vincent.ding-Q I have exactly the same issue with my trace camera as (very clearly) described by @O_Tal_Antiquado

You are referring to a manual. Can you share the manual with me too, please?
Thank you in advance.