Per Jessen wrote:
David C. Rankin wrote:
Is there any way to stop the blocked mail from being sent to the backup host or is this just the natural consequence on the backup server scheme? (undeliverable at MX priority 10, the automatically sent to MX priority 20)
It works as designed and intended. If an MX does not receive the mail, the next MX'es are tried in increasing order of weight.
For normal mails this should only be the case if the first mx rejects the mails temporarily (error code 4xx). If your server rejects with a permanent error 5xx, then the sending server has to bounce the mail immediately. Greylisting for example must be implemented on both servers otherwise you will always get a temp reject on the first and then the mail will be accepted by the server without greylisting. What spammers do is their own secret. Sometimes the backup mx is hit almost exclusively, other times it isn't used at all. Generally, you should use the same mail policy on both mx so that a mail is rejected or accepted on both the same way. -- Sandy List replies only please! Please address PMs to: news-reply2 (@) japantest (.) homelinux (.) com -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org