> @Alexandre: You've removed the "$mail_plugins" in the IMAP section as Peter > already pointed out?
I'm not sure to fully understand how mail_plugins directive works. Please correct, if I'm wrong : Global mail_plugins lists common plugin used by all protocol : > mail_plugins = quota mail_log notify Later, within each protocol declaration, I need to reference $mail_plugins variable (i.e. mail_plugins = $mail_plugins …) Each protocol can use its own mail_plugins with an override : > protocol imap { > mail_max_userip_connections = 80 > mail_plugins = quota imap_quota antispam > } In that case mail_log notify are not enabled for protocol imap. So, I have two options : 1. List all mail_plugins explicitly for protocol imap, like this : mail_plugins = quota mail_log notify protocol imap { mail_max_userip_connections = 80 mail_plugins = quota imap_quota antispam mail_log notify } 2. Use $mail_plugins variable to include global mail_plugins into protocol imap : mail_plugins = quota mail_log notify protocol imap { mail_max_userip_connections = 80 mail_plugins = $mail_plugins imap_quota antispam } Alexandre