Undeliverable e-mail

[Kendriga]

I am getting e-mail returned undeliverable saying "The following recipient
could not be reached: '(e-mail address removed)' on (date & time) 450 4.1.8
- Domain of recipient does not resolve [R0309001]."

I am sending an e-mail from home to my work e-mail account (which I have
done many times before) but now all e-mails sent from my home to work return
undeliverable. The send and receive function on both e-mail addresses works
fine except when trying to communicate between the two. Can you help?

 

[VanguardLH]

I am getting e-mail returned undeliverable saying "The following recipient
could not be reached: '(e-mail address removed)' on (date & time) 450 4.1.8
- Domain of recipient does not resolve [R0309001]."

I am sending an e-mail from home to my work e-mail account (which I have
done many times before) but now all e-mails sent from my home to work return
undeliverable. The send and receive function on both e-mail addresses works
fine except when trying to communicate between the two. Can you help?

It means domain xx.xxxx.xxx is not known to whomever is your e-mail
provider. What do you get in a command shell when you run:

nslookup xx.xxxx.xxx

 

[Evan Platt]

It means domain xx.xxxx.xxx is not known to whomever is your e-mail
provider. What do you get in a command shell when you run:

nslookup xx.xxxx.xxx

That may be a start, but likely the OP will have to call their ISP.
Even if the domain resolves for the OP from the OP's computer,
obviously the domain doesn't resolve from the SMTP server the OP is
using.