Description
Please fill the info fields, it helps to get you faster support ;)
if you have a stack dump decode it:
https://github.com/esp8266/Arduino/blob/master/doc/Troubleshooting/stack_dump.rst
for better debug messages:
https://github.com/esp8266/Arduino/blob/master/doc/Troubleshooting/debugging.rst
----------------------------- Remove above -----------------------------
Basic Infos
Hardware
Hardware: ESP-12
Core Version: 2.4.0-rc2
Description
I am working on the ESP8266 gmail sender (http://www.instructables.com/id/ESP8266-GMail-Sender/) to send email using WiFiClientSecure. I can get it to work with gmail, but fail to get even connect to the server with mail.smtp2go.com.
Settings in IDE
Module: ?nodeMCU 0.9?
Flash Size: ?4MB/1MB?
CPU Frequency: ?80Mhz?
Flash Mode: ?DOUT?
Flash Frequency: ?40Mhz?
Upload Using: ?SERIAL?
Reset Method: ?ck / nodemcu?
Sketch
#include <Gsender.h>
#include "ESP8266WiFi.h"
#pragma region Globals
const char* ssid = "MyWiFi"; // WIFI network name
const char* password = "Password"; // WIFI network password
uint8_t connection_state = 0; // Connected to WIFI or not
uint16_t reconnect_interval = 10000; // If not connected wait time to try again
#pragma endregion Globals
uint8_t WiFiConnect(const char* nSSID = nullptr, const char* nPassword = nullptr)
{
static uint16_t attempt = 0;
Serial.print("Connecting to ");
if (nSSID) {
WiFi.begin(nSSID, nPassword);
Serial.println(nSSID);
} else {
WiFi.begin(ssid, password);
Serial.println(ssid);
}
uint8_t i = 0;
while (WiFi.status() != WL_CONNECTED && i++ < 50)
{
delay(200);
Serial.print(".");
}
++attempt;
Serial.println("");
if (i == 51) {
Serial.print("Connection: TIMEOUT on attempt: ");
Serial.println(attempt);
if (attempt % 2 == 0)
Serial.println("Check if access point available or SSID and Password\r\n");
return false;
}
Serial.println("Connection: ESTABLISHED");
Serial.print("Got IP address: ");
Serial.println(WiFi.localIP());
return true;
}
void Awaits()
{
uint32_t ts = millis();
while (!connection_state)
{
delay(50);
if (millis() > (ts + reconnect_interval) && !connection_state) {
connection_state = WiFiConnect();
ts = millis();
}
}
}
void setup()
{
Serial.begin(115200);
connection_state = WiFiConnect();
if (!connection_state) // if not connected to WIFI
Awaits(); // constantly trying to connect
Gsender *gsender = Gsender::Instance(); // Getting pointer to class instance
const char* EMAILBASE64_LOGIN = "base64_encoded_loginemail";
const char* EMAILBASE64_PASSWORD = "base64_encoded_password";
const char* FROM = "[email protected]";
String subject = "Subject is optional";
if (gsender->Subject(subject)->Send("[email protected]", "Alerts are working now")) {
Serial.println("Message send.");
} else {
Serial.print("Error sending message: ");
Serial.println(gsender->getError());
}
}
void loop() {}Debug Messages
With gmail I get the following:
Connecting to :smtp.gmail.com:465
please start sntp first !
220 smtp.gmail.com ESMTP n3sm3479813qte.14 - gsmtp
HELO localhost:
250 smtp.gmail.com at your service
AUTH LOGIN:
334 VXNlcm5hbWU6
EMAILBASE64_LOGIN: d*********************************9t
334 UGFzc3dvcmQ6
EMAILBASE64_PASSWORD:b************E=
235 2.7.0 Accepted
MAIL FROM: <w**********[email protected]>
250 2.1.0 OK n3sm3479813qte.14 - gsmtp
RCPT TO: <a*******[email protected]>
250 2.1.5 OK n3sm3479813qte.14 - gsmtp
DATA:
354 Go ahead n3sm3479813qte.14 - gsmtp
250 2.0.0 OK 1512667183 n3sm3479813qte.14 - gsmtp
221 2.0.0 closing connection n3sm3479813qte.14 - gsmtp
============================================
with mail.smtp2go.com, I tried different port numbers and get teh following.
Connecting to :mail.smtp2go.com:2525
please start sntp first !
ssl->need_bytes=8301 > 6859
Connecting to :mail.smtp2go.com:465
please start sntp first !
Error: connection lost
Connecting to :mail.smtp2go.com:25
please start sntp first !
ssl->need_bytes=8301 > 6859