• 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.

Issue 503 when receiving large volume of mail in a short time

joseceta

New Pleskian
Hi, I have a problem, I have a plesk that has a domain with 800 email accounts and we have observed that the days that a massive mailing is done to those 800 accounts the server stays "dead", gives 503 the email does not work for a few minutes .. may it be dovecot configuration that has to expand the memory allocation? it's a vps but at no time do we put the server's memory to the limit.
 
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