When I have a problem with DNS cyrus imapd becomes extremely slow.
A simple test: "telnet imap 143-server.com" takes about 15 seconds to display the banner.
* OK [CAPABILITY IMAP4rev1 ID LITERAL + ENABLE = MUPDATE mupdate: / / mupdate.com / STARTTLS AUTH = PLAIN SASL-IR] domain.com Cyrus IMAP Murder v2.4.12 server ready
With DNS working properly the banner is displayed instantly.
Is there any way to disable the name resolution for cyrus?
Many MTAs have this option to speed up the deliver process.
I dont find any similar option in man imapd.conf
Regards
Zinato
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