How to write Python or JSL to automatically log in to an email account to send and receive emails?

[#1]

Thanks Experts!

Directly read the current JMP table:

Row 1 contains the sender email information

Row 2 contains the receiver email information

After receiving the email, directly write the received content into row 2 of the “Content” column in the current table.

dt = New Table(
    "EmailConfig",
    Add Rows(2),
    New Column("Email", Character, Set Values({
        "A@gmail.com",
        "B@gmail.com"
    })),
    New Column("Password", Character, Set Values({
        "AA",
        "BB"
    })),
    New Column("Content", Character, Set Values({
        "Test",
        ""
    }))
);

[#2]

For Python, this isn't correct place to ask. 

For JSL, what type of service do you have? Do you have access to some API to send and receive the emails which JMP can access?

[#3]

Thanks Experts!
AI's
it's not work.

dt = Current Data Table();

sender = Char(dt:Email[1]);
pwd_sender = Char(dt:Password[1]);
content = Char(dt:Content[1]);
receiver = Char(dt:Email[2]);
pwd_receiver = Char(dt:Password[2]);

proxy = "--proxy \!"http://127.0.0.1:7897\!"";

message_file = "C:\temp\jmp_message.txt";
Save Text File(message_file, "Subject: Test Email\n\n" || content);

send_options = {"smtp://smtp.gmail.com:587", "--mail-from", sender, "--mail-rcpt", receiver, "--user", sender || ":" || pwd_sender, "-T", message_file, "--ssl-reqd", proxy};

rp_send = Run Program(
	Executable("curl.exe"),
	Options(send_options),
	ReadFunction(Function({this}, send_out = this << Read; Show(send_out); ))
);

Wait(10);

search_options = {"--url", "imaps://imap.gmail.com/INBOX", "--user", receiver || ":" || pwd_receiver, "-X", "\!"SEARCH ALL\!"", proxy};

rp_search = Run Program(
	Executable("curl.exe"),
	Options(search_options),
	ReadFunction(Function({this}, search_out = this << Read; ))
);

match_pos = Contains(search_out, "* SEARCH");
if(match_pos > 0,
	ids_start = match_pos + Length("* SEARCH ");
	ids_end = Contains(search_out, "\r\n", ids_start);
	ids = Substr(search_out, ids_start, ids_end - ids_start);
,
	ids = "";
);

id_list = Words(ids, " ");
if(N Items(id_list) > 0,
	last_id = id_list[N Items(id_list)];
,
	last_id = "";
	dt:Content[2] = "Receive Failed";
	throw();
);

fetch_options = {"--url", "imaps://imap.gmail.com/INBOX", "--user", receiver || ":" || pwd_receiver, "-X", "\!"FETCH " || last_id || " BODY.PEEK[TEXT]\!"", proxy};

rp_fetch = Run Program(
	Executable("curl.exe"),
	Options(fetch_options),
	ReadFunction(Function({this}, fetch_out = this << Read; ))
);

body_start = Contains(fetch_out, "{");
body_end = Contains(fetch_out, ")", body_start);
body_length = Num(Substr(fetch_out, body_start + 1, body_end - body_start - 1));
content_start = body_end + 2;
received_content = Substr(fetch_out, content_start, body_length);

cleaned = Trim(Regex(received_content, "[\\r\\n]+", " ", "GLOBALREPLACE"));

dt:Content[2] = cleaned;

[#4]

I cannot directly help you, but you can use VScript to send mail with JMP, use Mail() command, powershell with Send-MailMessage or other options.