Timeouts when sending large amounts of emails

Scott Forsyth

Posted on 25/05/2022 23:42:01

Hello,

We're struggling with large mailings with a large number of recipients. This is the same project that I brought up a few months ago. The site is only able to send about 1200 emails at a time before it times out. Clicking on Retry will complete approximately another 1200. The total number to send is 24,286.

I was going to ask more questions, but I just noticed one thing that I missed previously, so I have just one question.

The mailing was set up using the Dynamicweb Send Provider, which is using a SendGrid account (rather than the Marketing SendGrid provider). Am I correct that that doesn't perform well for large mailings, and that we should be using the Marketing's SendGrid provider instead? Could that be the issue with it timing out each time it tries to send the emails?

We continue to struggle with large mailings so I would like to find a stable option. If it's my mistake above, at least it would be good to know that it's the problem and we should expect it to work next time using the SendGrid provider.

Note that this is 9.13.3, but the same timeout issues happened on 9.10 too, for the same site.

As a side, I tried the new throttle settings (https://doc.dynamicweb.com/forum/feature-requests/feature-requests/add-throttle-to-email-mailing), but that didn't help or hurt with the timeout issue. It still times out after a given amount of time.

Thanks,

Scott

Replies

Oleg Rodionov

Posted on 26/05/2022 03:17:18

HI Scott,

Hmm, DW9.13.3 already has #5139 fix (Dynamicweb.Mailing 5.0.4). Perhaps, it should be reimplemented if not fixed correctly in fact. I've asked to Nicolai (the task implementer) to reply it. So, let's wait for the feedback. Sorry for inconvience.

BR, Oleg QA

Scott Forsyth

Posted on 26/05/2022 05:37:48

Hi Oleg,

Regarding #5139, I don't have any reason to believe that didn't work. I didn't do much testing with it yet. That's meant to address high CPU issues.

The problem for us thsi time is something different. It's with a timeout issue. I just now checked the EmailRecipient table and I see that the timeout was exactly 10 minutes each time. What appears to be happening is that, when using at least the Dynamicweb mail provider (set up to use SendGrid), it will send emails for 10 minutes and then time out. Someone has to manually click the retry link to get it to send for another 10 minutes at a time, and repeat the process until they are all sent.

Thanks,

Scott

Oleg Rodionov

Posted on 27/05/2022 01:37:26

This post has been marked as an answer

Hi Scott,

regarding Nicolai's opinion, he's suggested to try to use marketing version of SendGrid first of all, since the issue can be caused on the provider side (probably limited on SendGrid side). Please, comment about results. Thanks.

BR, Oleg QA

Votes for this answer: 1

Scott Forsyth

Posted on 27/05/2022 20:35:25

Hi Oleg,

Ok, I'll do that. It will be a few months until the next large mailing, but we'll give it another try and see if it's addressed with the marketing version of SendGrid.

Thanks,

Scott

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Timeouts when sending large amounts of emails

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