Overview
When sending emails to tát a Google Workspace tin nhắn tài khoản and/or Gmail, you may receive a rejection notice from Google which contains something similar to tát the following:
550-5.7.26 This mail is unauthenticated, which poses a security risk to tát the
550-5.7.26 sender and Gmail users, and has been blocked. The sender must
550-5.7.26 authenticate with at least one of SPF or DKIM.This is because Google didn’t know if it could trust the servers sending the tin nhắn or not and this relies on one or more methods to tát authenticate the servers and these are likely missing.
Fix
To correct this error, you must ensure you have a valid Sender Policy Framework (SPF) record for your domain name.
We also recommend ensuring that DKIM signing has been configured and enabled for your domain name.
These two items are control mechanisms for tin nhắn to tát give assurance that the server sending them is allowed to tát on behalf of your domain name. Not only will it correct issues with gmail rejecting tin nhắn, it will increase the tin nhắn deliverability for many other systems as well.
If you need assistance, Conetix customers can simply contact our tư vấn team and they’ll be able to tát review your SPF and DKIM settings on your behalf.