Good day. Tell me how to better configure the server to send messages faster.
Now we have two lists of subscribers 20k and 600k.
Sending occurs through different SMTP servers.
Server configuration where mailwizz stands:
Debian Linux 10
PHP Version: 7.3.4-2
10.3.17-MariaDB
Intel (R) Core (TM)...
Good day. Please tell me why double discoveries very often appear in the statistics of discoveries. Sometimes, discoveries also appear, although I certainly did not open the letters that arrived. I use only my mail for testing.