Hmm I have created marketing application. and when it goes live the client comes with approxx.. 10M mails to be sent at once :( Everything worked smoother But client does not have patience to wait.. So he went to the boss.. boss told us heyy you process email one by one .. instead create batch of emails and then sent.. my whole application flow has been changed.,.....
Its like am on 0 to start again

crying in corner ... :(

The emails HAVE to be sent one by one.

You can Automate this task, but they are ultimately still sent one by one.

If you need to run up bulk email in a hurry, run up a domain with a free email account somewhere for about $10... and then use MaxBulk Mailer.

This software is shit. Its creator is a dick... but it's cheap, the setup is reasonably painless, and it spams emails out well enough.

how many mails per second did go out?

@stop depends a little on your SMTP...

But I’ve had good luck setting MaxBulk to send one email per two seconds...

So 30 per minute.

Note I’ve run this against lists about 10k long. Any bigger than that and you’d have to split up the list too.

Note, there are probably better utilities and services, this is just the cheapest one.

the only method to send such a mass of emails without problems is with an replicated emailsetup. that means multiple smtp servers that have each a good processing capacity and a good internet connection.

10000000*5kb~=47GB

if the emails arent personally addressed, you could try to use the BCC-field, so that one email is sent to multiple people and much less traffic.

@HiFiWiFiSciFi

False.

Depending on your provider you can sent multiple thousands of emails with a single API call.
And even if your provider doesn’t have this functionality, you can create 1000 threads simultaneously, each sending only 1 email, then clean them up. (In C# it will be 1 line of code).
BUT, sending 10M emails, I really hope it’s a big big company. Any startup will see their email trust score at 0 after that.

edit : ofc, not direct SMTP, but a providers like sendgrid

@NoToJavaScript

False != depending on your provider.

Op seems like this is a task they’ve been given... not a thing they’ve been told to throw a few grand at on MailChimp.

@HiFiWiFiSciFi Few grands ? Not sure.

1M emails cost me around 30$/month.

@NoToJavaScript so for 10,000,000 emails that’s $300/mo or thousands per year... to send email.

Look you’re not wrong... and neither am I... we’re just arguing about the difference between the DIY solution and paying a service to do it.

@HiFiWiFiSciFi True

Actually it is because we are using a "basic" plan.

You can get 1.5 Millions / month for 90$

https://sendgrid.com/pricing/

Disclamer, I link sendgrid just because I use thier services :) I have no idea what other services prices are.

@HiFiWiFiSciFi unable to argue with client and boss :(