Add mail driver (#3205)

* Add node mailer packages

* Init mailer module

* Add logger transport

* Use env variable to get transport

* Revert "Add node mailer packages"

This reverts commit 3fb954f0caef94266f96ff5f08de750073ab3491.

* Add nodemailer

* Use driver pattern

* Use logger

* Fix yarn install

* Code review returns

* Add configuration examples for smtp

* Fix merge conflict

* Add missing packages

* Fix ci

packages/twenty-server/src/integrations/environment/environment.service.ts

@@ -2,6 +2,8 @@
 import { Injectable, LogLevel } from '@nestjs/common';
 import { ConfigService } from '@nestjs/config';
 
+import { EmailDriver } from 'src/integrations/email/interfaces/email.interface';
+
 import { LoggerDriverType } from 'src/integrations/logger/interfaces';
 import { ExceptionHandlerDriver } from 'src/integrations/exception-handler/interfaces';
 import { StorageDriverType } from 'src/integrations/file-storage/interfaces';
@@ -170,6 +172,28 @@ export class EnvironmentService {
     );
   }
 
+  getEmailDriver(): EmailDriver {
+    return (
+      this.configService.get<EmailDriver>('EMAIL_DRIVER') ?? EmailDriver.Logger
+    );
+  }
+
+  getEmailHost(): string | undefined {
+    return this.configService.get<string>('EMAIL_SMTP_HOST');
+  }
+
+  getEmailPort(): number | undefined {
+    return this.configService.get<number>('EMAIL_SMTP_PORT');
+  }
+
+  getEmailUser(): string | undefined {
+    return this.configService.get<string>('EMAIL_SMTP_USER');
+  }
+
+  getEmailPassword(): string | undefined {
+    return this.configService.get<string>('EMAIL_SMTP_PASSWORD');
+  }
+
   getSupportDriver(): string {
     return (
       this.configService.get<string>('SUPPORT_DRIVER') ?? SupportDriver.None