I have basic understanding of how everything works. But I want to get better understanding and dive deeper.
I will how do I understand all these stuff.
Consider we are sending letter to
- When we are sending letter firstly DNS resolves
- It asks
.DNS server than it is redirected to
.com.DNS zone server and than to the
NSserver/servers that are responsible for storing info about
world.comdomain. We can change(redirect to another)
NSservers in domain control panel.
- After finding proper
NSserver which is responsible for providing information about this domain it retrieves data about
- Mail is sent to the SMTP server specified in
- Because we are not using
POP3protocol over letter is saved on the
SMTPserver responsible for maintenance of our domain (MX record).
SMTPserver backups all our mail on the server and we can access our mail from anywhere using
Am I right ?
Most of time
MX record has hoster mail servers specified.
So my main question is
If I change
MX record of my domain to another server, than I will lost all mail history ? Or it is possible to transfer mail to new server ? And if I switch back again to old
SMTP server will I find all my mail there or it will be removed ?
Maybe I am completely wrong, but I will be grateful for any help.