On 10/13/2013 05:10 PM, Roman Gelfand wrote: > On Sun, Oct 13, 2013 at 12:04 AM, Roman Gelfand <rgelfa...@gmail.com> wrote: >> >> said: 451 Temporary local problem - please try later (in reply to >> RCPT TO command))
> sorry about this. I guess it has nothing to do with mx records. It > is the remote server telling me their server is not able to accept > mail. Right and the 4xx code explicitly tells postfix to defer the mail and try again later, hence why postfix is (correctly) saving the mail in the deferred queue. It will retry until the delivery is successful or it fails with a 5xx code, or or up to five days (by default). Peter
