• The BIND DNS server has already been deprecated and removed from Plesk for Windows.
    If a Plesk for Windows server is still using BIND, the upgrade to Plesk Obsidian 18.0.70 will be unavailable until the administrator switches the DNS server to Microsoft DNS. We strongly recommend transitioning to Microsoft DNS within the next 6 weeks, before the Plesk 18.0.70 release.
  • The Horde component is removed from Plesk Installer. We recommend switching to another webmail software supported in Plesk.

QMail : Slow, added -Rt0 in xine, but another problem

i just allow both types of smtp authentication

i just allow both types of smtp authentication in the plesk mail configuration, both pop3 and smtp, and it seems to not necessarily speed up sending mail, but it does seem to work a bit smoother.

-Rt0 in my case does not allow my email program to send at all, as the -Rto (or -rt0) is illegal according to the error message i get. so in my case i have to just use -r .

i think the delay is that the spammer block list that you are using, checks the senders IP address to see if they are a spammer. so as long as your customers know the reason for the delay they should be ok with it, since everyone hates spam.
 
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