![]() ![]() This is particularly relevant for MX record changes, as it ensures a smooth transition when migrating mail flow.īy convention, and often by default, DNS records are configured with a TTL of 86400 (24 hours) however they can take up to 72 hours to propagate fully. Do this a few days in advance, and when you make the changes, they should propagate in a more timely fashion. If you are aware that you will be making DNS changes in the near future then it is a good idea to lower the TTL of the DNS records which will be changed. Every DNS record has a specific TTL, which is the length of time before the record expires and is renewed by a client. For these reasons it is worth outlining some options and good practice guidelines for different configuration types, along with some post-migration hints.īefore we delve into any specific detail, a quick word on TTLs (time to live) and DNS propagation. Once you’ve taken the plunge, migrated your users and are using Office 365 in anger, DNS remains vital to having a quality user experience. Whether you are migrating your email system to Office 365 using a Cutover, Staged or Hybrid migration, having the correct DNS configuration is key to performing a successful migration. Emily Coates is a Premier Field Engineer at Microsoft UK. She specialises in Messaging and Business Productivity, and is the proprietor of MissTech, a tech blog for all things cloud.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |