The email reaches the users in no time

Please help me with this problem of slow email access to users
Then I want to know 14400 is it equivalent to four hours in TTL, but I have an automatic, then from one minute to one hour to two hours to five hours there are no four hours

Without knowing the domain name where this issue appears, until then may I suggest taking a look at the below articles, just in case:

This topic was automatically closed 15 days after the last reply. New replies are no longer allowed.