Unable to add more than 100 email addresses to SpamAssassin White/Black List in Tools & Settings > Spam Filter > Black/White list or in Domains > example.com > Mail > Email Addresses > [email protected] > Spam Filter. One of the following messages are shown in Plesk interface:
Warning: Only 100 first unique e-mail addresses will be added
Only 100 unique email addresses can be added
ERR  PleskUtilException: spammng failed:
SpamAssassin limitation does not allow add more then 100 emails.
NOTE: Large number of addresses in the SpamAssassin white/black lists may significantly reduce server performance.
- Connect to the server using SSH;
- Create a backup of Plesk database;
Run the following commands to set maximum number of addresses. As an example, the maximum number of 150 mail addresses is given: you may choose appropriate number according to your needs.
For Plesk Onyx:
# plesk db "replace into ServiceNodeConfiguration values (1, 'mailServer', 'spamfilter_max_addr_list_length', 150);"
For Plesk Obsidian:
# plesk bin settings --set spamfilter_max_addr_list_length=150