Category Archives: Hosting

R=dkim_lookuphost T=dkim_remote_smtp defer (-46) H=hostname [xx.xx.xx.xx]: SMTP error from remote mail server after end of data: 451 Local Error

Exim error: R=dkim_lookuphost T=dkim_remote_smtp defer (-46) H=hostname [xx.xx.xx.xx]: SMTP error from remote mail server after end of data: 451 Local Error or something like this: dkim_lookuphost T=dkim_remote_smtp defer (111): Connection refused

If you are getting this error on cPanel server, you should try disable dkim on your existing users accounts. To do this you can in your WHM panel or using API.

innodb_force_recovery oprions

Mode 1 – Doesn’t crash MySQL when it sees a corrupt page
Mode 2 – Doesn’t run background operations
Mode 3 – Doesn’t attempt to roll back transactions
Mode 4 – Doesn’t calculate stats or apply stored/buffered changes
Mode 5 – Doesn’t look at the undo logs during start-up
Mode 6 – Doesn’t roll-forward from the redo logs (ib_logfiles) during start-up

nfo [cpses_tool] MYSQL: Remove dbuser cpses blank screen

1) I ran a grep for the sessions that were currently in effect:

# grep “cpses_” /var/cpanel/databases/

2) I removed the following sections from any user’s yaml that matched the

cpses_########”:
dbs: {}
server: X.X.X.X

3) I removed each of the cpses_######## lines from /var/cpanel/databases/users.db

4) I ran the following command to update the user-data:

# /scripts/update_db_cache

5) I then removed all of the cpses_######## users from the mysql.user table to remove the users from mysql. This can be accomplished from the command line or from WHM>> PhpMyAdmin