massmail

Whats the best way to implement mass email sending feature within web app? Two major cases: Email messages for separate registered users depending on their activities (just sending short reminders to user for ex about new posts in his created topic) "Send email for all registered users" functionality, it will be nice to have feature for system administrator to send some messages for all registered users. Of course adding all emails to recipient isn't the way we can go, because email addresses for each user are anonimous. As i understand for case nr1 there is no problem just create some email

I put together a really nice mass mailer, but occasionally mails end up in junkmail on various different mail providers for various reasons. Does anyone know if there is a write up anywhere on best practices to send mass mailers? MailChimp have a good document which covers key points (IP ranges, rate limiting, SPF/DKIM, bounce handling, feedback loops). As an aside, it's unusual to see something so comprehensive from a company whose business is based around doing this kind of stuff for other people - presumably they hope it'll make you think twice before building something from scratch! 来源：

I am creating a system, where a list of thousands of emails will be sent periodically, I know that the mail() function in PHP is quite heavy, specially if calling it too many times simultaneously. Roughly the way my system works , is that I create queue of emails in MySQL and send them in batches of 25 using mail() , removing from the table the top 25 sent. And I wait 2 seconds between each set of 25. Is this too much effort for the server or I can push it a bit further? Lets say 50 per second? Or there is a better way of sending many emails in less time without sacrificing Server performance.

I am writing an application that will need to send a massive amount of emails to our students who will be selected from our database (each email will be personalized to the extent that will include their name, course of study etc...so needs to be sent one at a time). I could do this looping over an SmtpClient, but I'm afraid that with the numbers I'm trying to send, I'll ultimately run into timeout issues or my thread being killed because of lack of machine resources. At this point I'm just looking for suggestions of a better way to handle this, or if looping over SmtpClient is an ok solution,

My company has a website built with PHP. We use the built-in PHP email functionality to send thousands of emails to subscribers on a daily basis. This is a terrible idea. It chokes out our server, and takes hours to complete the whole batch. Now I've looked at mass mailing services like MailChimp (which would replace our current system of sending the same email to many people), but what I think I'd really like to do is to set up a somewhat-sophisticated notification system. Rather than send a mass email to each person each time something important happens, I'd like clients to be able to

I need to send regular newsletters, as well as smaller batches, to a 10k strong mailing list, programmatically. We're currently exporting our list and then using Campaign Monitor's web interface to create and send the newsletters. Campaign Monitor is great, but it is simply too expensive. Sending just one email to the entire list costs us $105, sending smaller batches is even more expensive as they charge 'per campaign'. I have two requirements: I don't want to worry about bouncing, domain keys, black lists, ISPs, or any of that bs. I want a solution that is as cheap as possible. My best bet