Hi Noel, example.com listed in main.conf here is entries, after listing relay_domains, i can see maillog, mailhub starts relaying to old primary mail server.
mydomain = example.com mydestination = $myhostname, localhost.$mydomain, mailhub.example.com relay_domains = $mydomain As you suggested i will check DNS TTL So we can pull mails from old mail server till priority level updates? Thanks for suggestions. Regards, Ramesh --- On Tue, 11/1/11, Noel Jones <njo...@megan.vbhcs.org> wrote: From: Noel Jones <njo...@megan.vbhcs.org> Subject: Re: MX Priority To: postfix-users@postfix.org Date: Tuesday, 11 January, 2011, 10:54 AM On 1/10/2011 11:13 PM, Ramesh wrote: > > Hi, > > I have few queries about changing mail priority level. presently we have > taking mail service from mail service provider, we want to bring up our own > mail server as primary. > > mx entries > > example.com mail is handled by 0 example.com. > example.com mail is handled by 10 mailhub.example.com. > > Yesterday i've changed priority 0 to 20, making mailhub as lowest priority > 10, primary mail server for example.com > > when i send mail to x...@example.com from yahoo > maillog in mailhub shows 554 5.7.1 (Relay access denied) but i can send mail > from mailhub through webmail. > "relay access denied" means that example.com is not listed in mydestination, virtual_domains, virtual_alias_domains, or relay_domains. Postfix doesn't think it's responsible for that domain. > I would like to know... > 1)If we change mx priority, how much time it will take to update priority > level? Depends on your DNS TTL and if the remote site has your records cached. Anywhere from a couple minutes to a couple weeks for sites that have the old records cached. No delay for sites that don't have your records cached. > 2)If it takes more time during this period where new mails queued? Mail will be sent to the old primary if that's what remote sites have cached. > > Please suggest me things to follow for migrating primary to secondary mail > server. It's customary to reduce your DNS TTL a few days prior to planned changes. > > Thanks and Regards, > Ramesh > -- Noel Jones
