Library to send EMail with attachments

Arduino (support W5100 like must be set, and ENC28J60 via UIPEthernet), esp8266 (SPIFFS, LittleFS and SD) (core <=2.4.2 must be set) and esp32 (SPIFFS, LITTLEFS, Ffat and SD), Arduino WiFiNINA SAMD devices (Arduino MKR WiFi 1010, Vidor 4000 UNO WiFi Rev.2 ecc.) (SD).

Complete english tutorial

Send email with attachments (EMailSender v2.x library): Arduino Ethernet

Send email with attachments (EMailSender v2.x library): esp32 and esp8266

Tutorial completo in italiano

Inviare email con allegati (libreria v2.x): Arduino Ethernet

Inviare email con allegati (libreria v2.x): esp32 e esp8266

Change log

• 14/03/2024: v3.0.14 Support Arduino GIGA WiFi
• 31/10/2023: v3.0.13 Fix wrong implementation of FORCE_DISABLE_SSL
• 17/10/2023: v3.0.12 Fix warnigs of variable not used #43 thanks to @Patriboom @Andy2015
• 16/02/2023: v3.0.11 Add support for Ethernet_Generic
• 20/01/2023: v3.0.10 Add the management of ESP8266SdFat library on Raspberry Pi Pico #forum
• 17/01/2023: v3.0.10 Add the mamagement of auto check of response number #36 thanks to @HACKER-3000 @H3
• 13/01/2023: v3.0.9 Fix external storage error 404 (#forum
• 05/01/2023: v3.0.8 Fix distribution list examples
• 22/09/2022: v3.0.7 Add Raspberry Pi Pico W and rp2040 boards
• 20/09/2022: v3.0.7 Add STM32 management for https://github.com/rogerclarkmelbourne/Arduino_STM32 library.
• 16/08/2022: v3.0.6 Add FORCE_DISABLE_SSL to disable SSL if present
• 19/07/2022: v3.0.5 Additional fix on additional response management (#26)
• 12/07/2022: v3.0.4 Fixed attachment issue on SPIFFS and LittleFS
• 06/07/2022: v3.0.3 Manage multiple response message after connect and HELO (#26)
• 03/06/2022: v3.0.2 Add possibility to set additionalResponseLineOnConnection with void setAdditionalResponseLineOnConnection(uint8_t numLines = 0), needed if on connection you receive 220 response as error, and add Ethernet2.
• 20/05/2022: v3.0.1 Put inside scope the client declaration (if you don't use SSLClient) for backward compatibility
• 18/05/2022: v3.0.0 Add STM32 support. Add SSLClient integration to allow send Email with SSL encryption (like Gmail) with ethernet (tested with STM32, ESP32, w5500, and enc28j60), minor fix
• 12/04/2021: v2.4.3 Fix multiple email send
• 12/04/2021: v2.4.1 Add support for LITTLEFS and Ffat on esp32 and fix certificate verification from esp32 core 1.0.5
• 18/03/2021: v2.3.0 Add support for LittleFS on esp8266
• 02/01/2021: v2.2.0 New support for SAMD devices via WiFiNINA (Arduino MKR WiFi 1010, Arduino Vidor 4000 and Arduino UNO WiFi Rev.2 ecc.).
• 01/01/2021: v2.1.5 Add possibility to use EHLO instead of HELO, and SASL login.
• 27/11/2020: v2.1.4 Add more constructor to allow more structure for distribution list (now const char*, char* and String array are supported)

23/11/2020: v2.1.3 Add management of name on EMail from

Installation Tutorial:

To download. click the DOWNLOADS button in the top right corner, rename the uncompressed folder EMailSender. Check that the EMailSender folder contains EMailSender\\.cpp and EMailSender.h. Place the EMailSender library folder your <arduinosketchfolder>/libraries/ folder. You may need to create the libraries subfolder if its your first library. Restart the IDE.

EMailSender library to send EMail.

With this library you can send email with attach: Arduino Network supported - w5100 like shield with Ethernet library - enc28J60 with UIPLibrary Storage support - SD

esp8266 you must pay attention, older core from 2.4.2 must be activated Storage supported - SD - SPIFFS - LittleFS

esp32 Storage supported - SD - SPIFFS - LITTLEFS - Ffat

Constructor: Default value is quite simple and use GMail as smtp server.

	EMailSender emailSend("smtp.account@gmail.com", "password");

If you want use onother provider you can use more complex (but simple) contructor

	EMailSender(const char* email_login, const char* email_password, const char* email_from, const char* smtp_server, uint16_t smtp_port);

You must connect to WIFI :P.

Create a message with the structure EMailMessage

    EMailSender::EMailMessage message;
    message.subject = "Subject";
    message.message = "Hi, How are you<br>Fine.";

Create array of attachments

// 		Two file
    EMailSender::FileDescriptior fileDescriptor[2];
    fileDescriptor[1].filename = F("test.txt");
    fileDescriptor[1].url = F("/test.txt");
    fileDescriptor[1].mime = MIME_TEXT_PLAIN;
    fileDescriptor[1].storageType = EMailSender::EMAIL_STORAGE_TYPE_SD;

    fileDescriptor[0].filename = F("logo.jpg");
    fileDescriptor[0].url = F("/logo.jpg");
    fileDescriptor[0].mime = "image/jpg";
    fileDescriptor[0].encode64 = true;
    fileDescriptor[0].storageType = EMailSender::EMAIL_STORAGE_TYPE_SD;

    EMailSender::Attachments attachs = {2, fileDescriptor};

Send message:

    EMailSender::Response resp = emailSend.send("account_to_send@gmail.com", message, attachs);

Then check the response:

    Serial.println("Sending status: ");
    Serial.println(resp.code);
    Serial.println(resp.desc);
    Serial.println(resp.status);

From version 2.1.1 new features distribution list to send CC and CCn email.

Example output:

Connection: ESTABLISHED
Got IP address: 192.168.1.104
Sending status: 
1
0
Message sent!

https://downloads.arduino.cc/libraries/logs/github.com/xreef/EMailSender/