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1) https://salesforce.stackexchange.com/questions/153331/using-batch-scheduling-for-mass-emails-apex
You Can use Marketing Cloud (ET) for same as well
All Answers
You can acheive this by scheduling.
Here is my batch
global class mailsend implements Database.Batchable <sobject>, Database.Stateful{
// global List<string> mailx;
public id mailid;
public string mailx;
public string dumname;
public string urlcode;
public List<Contact> Slist;
public string messageBody;
public string queryString = '';
public set<Id> setIds = new set<Id>();
public mailsend(){}
public mailsend(id DummyconId, string dummymail, string dummyname, List<Contact>SelectedDc ) {
mailid = DummyconId;
mailx = dummymail;
dumname = dummyname;
this.Slist = SelectedDc ;
// EmailTemplate templateId = [Select id from EmailTemplate where name = 'Sales: New Customer Email'];
}
global Database.QueryLocator start(Database.Batchablecontext Bc){
queryString += ' Where Id IN: setIds ';
return Database.getQueryLocator(queryString);
}
global void execute(Database.Batchablecontext Bc, List<Dummy_Contact__c> Scope){
ContactUpdateURL__c mc = ContactUpdateURL__c.getall().values();
urlcode = mc.URLforContactUpdate__c;
Map<id, String> mMap = new Map<id, String>();
List<Messaging.SingleEmailMessage> mails = new List<Messaging.SingleEmailMessage>();
For(Dummy_Contact__c dc: Scope){
String body = '' ;
//Creating tabular format for the case details
body = '<html><body>Dear '+dc.name+',<br><br> '+ +
'I' + 'm currently updating my contact database and want to make sure I have your current data right.' + +
'Could you have a quick look at below info? If you would like to change or update certain information, just click the ' + 'Update Now' + ' link on the bottom of the email and save your changes when done.<br> <br>' + +
'Many thanks in advance, ' +'<br>' + +
'' + UserInfo.getlastname() +' </html></body>';
Messaging.SingleEmailMessage mail = new Messaging.SingleEmailMessage() ;
String[] toAddresses = new String[] {dc.Email__c} ;
mail.setToAddresses(toAddresses) ;
mail.setSubject('Touch Contact');
mail.setHtmlBody(body);
mails.add(mail);
}
Messaging.sendEmail(mails);
}
global void finish(Database.Batchablecontext Bc){}
}
1) https://salesforce.stackexchange.com/questions/153331/using-batch-scheduling-for-mass-emails-apex
You Can use Marketing Cloud (ET) for same as well