Forums / Embedded GSM Development / Retrieve the Email by GSM Modem SIM 800/900 - Rickey's World of Microcontrollers & Microprocessors

Discussion in "Embedded GSM Development" started by Help Oct 14, 2017.

Help

[ Member ]

Sat Oct 14 2017, 07:58 am

Dear all,

AT
// OK

// 3.1  Bearer profile
// Configure bearer profile 1
AT+SAPBR=3,1,"Contype","GPRS"
// OK

// To open a GPRS context.
AT+SAPBR=3,1,"APN","3Gprepaid"
// OK

// To query the GPRS context
AT+SAPBR=1,1
// OK

// To close a GPRS context.
AT+SAPBR=2,1
// +SAPBR: 1,1,"10.168.207.36"

// OK


// 3.5 Retrieve the Email
// Set parameters of Email 
AT+EMAILCID=1
// OK

AT+EMAILTO=30
// OK

AT+EMAILSSL=1
// OK


// Set POP3 server and account 
AT+POP3SRV="pop.gmail.com","[email protected]","xxx",995
// OK

// Log in POP3 server
AT+POP3IN
// OK

// +POP3IN: 1

// Get Email number and total size 
AT+POP3NUM
// OK
// +POP3NUM: 1,267,7430098

// Get the specific Emailâ€™s size
AT+POP3LIST=1 
// OK
// +POP3LIST: 1,1,6900

// Retrieve the specific Email
AT+POP3CMD=4,1
// OK
// +POP3CMD: 1
// +POP3READ: 3,2254

// Get the Email content
AT+POP3READ=1460
// +POP3READ: 1,1460

AT+POP3READ=1460
// +POP3READ: 1,1460

// The Emailâ€™s content is read completely
AT+POP3READ=1460
// +POP3READ: 1,1460

// Log out POP3 SERVER 
AT+POP3OUT
// OK

// +POP3OUT: 1

https://cdn-shop.adafruit.com/datasheets/sim800_series_email_application_note_v1.00.pdf
https://www.scribd.com/document/325717874/SIM800-Series-AT-Command-Manual-V1-10

I'm trying to retrieve the email from gmail. I manage to retrieve the email but i couldn't find that email in my inbox and the strange thing is try to trace back the email in inbox record it doesn't exist. Whenever i repeatedly call the command again it retrieve out difference email, seems like it retrieved the email randomly.

Is it possible to retrieve that particular email that we pointed?

Thank you..

[ Edited Sat Oct 14 2017, 08:43 am ]

ExperimenterUK

Co-Administrator

Sun Oct 15 2017, 01:36 am

What happens if you ask for the full email
ie
AT+POP3READ=3,2254
I would have expected the text of the email to appear on screen, as it is received
so I assume it is not being sent.
Try another POP3 server, it may be that gmail does not allow you
to download like this. Many web based providers don't.

Help like this.

Help

[ Member ]

Sun Oct 15 2017, 08:51 am

AT+POP3READ=?
+POP3READ: (1-1460)

OK
AT+POP3READ=3,2254
+CME ERROR: operation not allowed

Do you know which POP3 server that i can try?

Gmail do allow me to retrieve the email. Sometime lucky would retrieve exactly the mail that really exist in Inbox. The mail doesn't exist in the inbox but manage to find it by using search engine. These mail that exist by search engine where i never seen and get notice before that. Is it this is more to gmail problem?

May i know which AT command is for call specific email? is it
AT+POP3CMD=4,1
1 is the 1st email?

Thank you,.

ExperimenterUK

Co-Administrator

Mon Oct 16 2017, 12:59 am

According to this, gmail should support POP3.
https://support.google.com/mail/answer/7104828?hl=en
Did you redirect your mail as in
"Step 2: Set up POP" ?

>May i know which AT command is for call specific email? is it
>AT+POP3CMD=4,1
>1 is the 1st email?

There are no standard AT commands to deal with POP3 as it was not part
of the original AT command set.
You are working with a set of command made up by SIMCOM.
Every model will be different, even different software versions of the same
model could be different.
For your modem, as I understand it, yes, that should retrieve the first email.

[ Edited Mon Oct 16 2017, 07:28 am ]