This problem appears in admin area, when I try to add more, then 990 servers - http://prntscr.com/byoqwl I can check them all - http://prntscr.com/byos9p, but when I press "Save changes" - http://prntscr.com/byosn4 this page is refreshing, but I still have 990 delivery servers - http://prntscr.com/byoszfLooking in the code, there is no limit set by mailwizz.
Sounds possibly like it, check the timeouts and other sql settings.But I made it right now via SQL... May be there is some problems with my server...