![]() Internet connection is very important while sending emails. ![]() Our internet connection could be the one stopping you from sending any emails. After navigating the causes, let’s move on with fixes. If your Gmail is not sending emails, we will tell you how to fix it. How to Fix if Gmail is Not Sending Emails? You can not send any more emails for the day if you have crossed this limit. You can only send emails to 500 recipients from a single mail and only 500 emails per day. Gmail has an email limit that most people don’t know of. If you use Gmail from any browsers like google, firefox, etc., you must check the updates for your browsers too. So, if you have typed the wrong domain, your email won’t get sent. The domain is the last part of the email address that comes right after the sign. If it is wrong then the receiver will not get the email. When you send an email, you should always check the receiver’s email address to see if it’s correct or not. Check your internet connection and see if there is an issue with it. If your internet is slow, Gmail will take longer to send emails. Your internet connection might be the cause of this problem. Check for updates on your play store to download newer versions. Sometimes, using older versions of apps causes many problems to arise. Have you checked for updates on your Gmail app? If not, then do it now. Of course, there are reasons other than this too. Hope it helps! By the way, here's all the code (there are a couple more things i configured, like ESP.eraseConfig() and setting the sleep mode (to no sleep): Serial.begin(115200) tDebugOutput(true) ESP.eraseConfig() WiFi.disconnect() // remove old credentials WiFi.mode(WIFI_STA) // set station mode tSleepMode (WIFI_NONE_SLEEP, 0) // disable sleep //tOutputPower(17.5) // Can go all the way up to 20.5 tPhyMode (WIFI_PHY_MODE_11G) WiFi.scanNetworksAsync(prinScanResult) // display list of available networks (just to check we can actually see the network we are about to connect) Serial.print("Connecting to ") Serial.println(STASSID) WiFi.begin(STASSID, STAPSK) // connect while (WiFi.status() != WL_CONNECTED) Serial.println("WiFi connected") Serial.println("IP address: ") Serial.println(WiFi.The most common cause for Gmail not sending email is the internet connection. I could connect at home, but not at work. Hi! Kind of late, but in case you still need a solution: tPhyMode (WIFI_PHY_MODE_11G) // By default it is set to WIFI_PHY_MODE_11B That line made it for me. You can use for encoding, result must be something like: const char* EMAILBASE64_LOGIN = "Y29zbWkxMTExMUBnbWFpbC5jb20=" Ĭonst char* EMAILBASE64_PASSWORD = "TGFzZGFzZDEyMzI=" We need Base64 encoded email address and password of gmail account which will be used to send emails.You can send mails without subject or if it already set gsender->Send(to, message) Subject function is optional! Subject sets once and stored until you change it. I'm receiving many emails every day because some of You guys not attentive, PLEASE DON'T FORGET TO CHANGE RECIPIENT EMAIL! Should be like this:įirst parameter of Send() function is recipient email, second message text.Ĭhange recipient from to your email which will receive a message. Set your wifi access point name (SSID) and password.Find and open ESP8266_Gmail_Sender.ino.When all software downloaded and installed: I wrote a little sketch which send one test message to check if all works as should. Sketch with project and test code (ESP8266_Gmail_Sender.zip).In my case USB UART Board(I'm using FT232RL FTDI Serials Adapter Module ebay).Temporary solution use core version 2.4.2.This code doesn't work with ESP8266 core for Arduino version 2.5.0!.Also no need to encode login and password to base64 now it uses ESP core base64 lib. Here is newer code written as arduino lib. You can connect sensors and get notified by email about changes. Which makes a self-contained microcontroller from it (no need of AT commands and master devices). This instructable relies on Arduino core for ESP8266 WiFi chip, I will show you how to send emails from any ESP8266 wifi module using Gmail server. Hello and welcome to my first Instructable.
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