3k emails per hour - very slow delivery

[CaLViN]

Hello,
I have just setup mailwizz to use it for high volume delivery.
You can see my delivery statistics and settings as below .
I havent been able to go over 3k emails per hour.It is sending a batch of emails like 300-500 and waits for 5 minutes or so with no delivery/connection at all while i have 0 setting for pause option.
Any ideas ?

 

[Vpul Shah]

Hello SendyMons,

Can you check your Delivery server settings - if there is any hourly limit in that ?

Thanks,
VPul.

 

[CaLViN]

Hello,
No limits.It is Pmta

 

[Vpul Shah]

Then Can you check your Customer Group - Campaign settings - any limit there ?

 

[twisted1919]

This will help: https://kb.mailwizz.com/articles/debug-send-campaigns-command/

 

[sharif]

@SendyMons What's Your Server configuration ?

 

[CaLViN]

Then Can you check your Customer Group - Campaign settings - any limit there ?

No limits.

@SendyMons What's Your Server configuration ?

I have managed to send 2500 emails per minute with below settings.

Playing with subscribers at once and subscriber batches in parallel made it faster but i cant increase it anymore.
Opening more connections doesnt help.
Let me know about your thoughts.

 

[Andy]

No limits.


View attachment 8990




I have managed to send 2500 emails per minute with below settings.
View attachment 8991
Playing with subscribers at once and subscriber batches in parallel made it faster but i cant increase it anymore.
Opening more connections doesnt help.
Let me know about your thoughts.

Well, that is already 150,000 emails per hours for a total of 3,600,00 emails per day... It's a good start considering the 'machine' that you have which has only ONE low profile double-core CPU.

If you wanted to "use it for **high volume** delivery" you will meed much more power than that, and much special server configurations and tweaking, and take several other factors in considerations, plus some expertise to put it all together as well.

Here's a good place to start to learn.
Andy

 

[CaLViN]

Hello Andy,
thank you for your advices but i am not a newbie.
Im a well known PowerMTA Consultant thus i dont want to mention my name here.
This box is still not loaded with this volume , so i will try out new settings on mailwizz side.
Will push it hard as we plan to send 200-250million emails per day.

 

[Nikhil Halder]

Can you Please Share your New Settings on Mailwizz Site?

 

[CaLViN]

I have already attached it before :
View attachment 8991

 

[171mails]

1. enable PCNTL and add 20 parallel thread for campaign and subscriber
2. Set "subscriber at once" to 1000
3. set "send campaign" cron to per minute frequency.
4. tune mysql config as per data size. Specially innodb file size

Also server configuration should be atleast 128GB memory, 16 Core CPU and SSD.