Comparison: SparkPost plugin in WordPress and Invision Power Board

[adv_user]

Why SparkPost plugin configured in WordPress takes a whole day to send 10,000 emails in my server and using SparkPost plugin in Invision Power Board it triggers the same 10 000 e-mails on the same server in just one minute?

What is the “miracle” of the script IPB 4 and can I change some plugin configuration in WordPress to be efficient equal Invision? For I want future integrate SparkPost on another site, but without me having to install 30MB of Invision forum and new license, wanted a open script only to send e-mails, as WordPress.

I also tested using Sparkpost with https://www.thenewsletterplugin.com – SparkPost properly configured to use the API, but it takes time (hours or even a day).

Thank you.

https://www.ads-software.com/plugins/sparkpost/

[rajuru]

How are you invoking the emails (i mean call wp_mail function)? If you’re calling it once for reach recipient, it may take a long time. Also there might be other delays in your code that generates those emails. Also if you’re using SMTP, try changing it to HTTP mailer from plugin settings. It should be faster than SMTP.