Slow Sending Rate 🐌

[ffsandi]

Dear teams,

I would like to ask why I only get about 10-35 emails/ minute when sending using SMTP from my Mautic.

I currently run on VPS with 4 core 8GB ram, and I also already try with 2 different VPS providers with the same specs.

I try several combinations, from 10 to 40 workers, and it doesn't give the significant result that I expect.

40 workers consuming around 50% ram, but not increasing the sending rate speed.

I see another member here could hit 900 emails/minute.

Do you have any troubleshooting guide to solve this problem?

Because it will need more than 2 days to finish sending emails to over 50K subscribers, it feels that I could get older faster waiting for this to finish 🤣

Thanks.

@adamcooke @willpower232

[willpower232]

That is quite slow, is it possible that Mautic is having trouble sending that many messages quickly? Is your database on the same server as Postal? It might be fighting for memory. Is Mautic on a different server entirely to Postal?

[ffsandi]

I don't think my mautic is the problem, because before this I am using amazon ses via smtp, and there is no problem sending big number of email up to 100k per day. The postal is running on separate and clean vps as your doc and I already did some tips from this forum. Such as increase worker, threads, and edit mysql configuration. Thanks

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On Fri, Jul 23, 2021, 03:13 Will Power ***@***.***> wrote: That is quite slow, is it possible that Mautic is having trouble sending that many messages quickly? Is your database on the same server as Postal? It might be fighting for memory. Is Mautic on a different server entirely to Postal? — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#1413 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AU5DGXSFUF543V3R4UKMTTLTZB3VBANCNFSM5AZUP2SA> .

[willpower232]

I assume Postal and Mautic are on different servers with the same company?
Aside from your worker processes, how much free memory does your Postal server have?
Is Postals database on the same server as Postal?

[ffsandi]

Postal & mautic are on different vps from same companies. My free ram around 3-4 from 8gb total. Postal database on same server.

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On Sun, Jul 25, 2021, 17:43 Will Power ***@***.***> wrote: I assume Postal and Mautic are on different servers with the same company? Aside from your worker processes, how much free memory does your Postal server have? Is Postals database on the same server as Postal? — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#1413 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AU5DGXXG3YTRJQMMDJ4DBFLTZPTGFANCNFSM5AZUP2SA> .

[willpower232]

Actually I guess the most relevant question would be how any CPU threads are available.

You could get this information from neofetch or htop if you have either of those installed.

[ffsandi]

There is no problem about CPU usage, it's only about around 5-10%

I am regularly checking the usage via htop.

[willpower232]

and in htop, how many CPU bars are there at the top?

[ffsandi]

4 CPU bar I recently reinstall postal with v2 version, just want to make sure if there will be better performance. I'll let you know once I did the test sending using the v2.

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On Mon, Aug 2, 2021 at 3:14 PM Will Power ***@***.***> wrote: and in htop, how many CPU bars are there at the top? — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#1461 (reply in thread)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AU5DGXVUJUURI4GRMABGYJ3T2ZHXDANCNFSM5BL4CWMQ> .

[Toni202012569]

Good afternoon. I have the same problem. The sending speed is very slow, only 200 emails per minute. How to ultimately increase your mailing speed. My RAM is at 50% capacity. Does this affect the speed of email delivery? Or will the effect only occur at 100% RAM load?

[akhil]

I have the same problem as well. RAM at 10%, CPU at 30% after scaling up. Barely doing 50 emails per minute

[sandrovenezuela]

Hi,

It may be a limitation of the data center used. For example, Hostinger allows you to create a Postal server, but you cannot use it for bulk email.

In other words, there is a limit on how many emails can be sent per minute.

[akhil]

The provider assured me there is no throttling enforced by them.

[gitbnitin]

Yes, I feel the same thing since we upgraded to 3.x.x release. the sending rate not going beyond 40, even when 80% of the resources like CPU and Memory and Disk I/O are free. Previously, it was sending more than 200/minutes. Something is wrong post the removal of the queue, but I am not sure how to demo it to the respected development team.