What does this mean 553 relaying blocked at this site

G

Guest

When I send an email to anyone it comes back as undeliverable with this
message : 553 relaying blocked at this site. It doesn't matter who i send It
to I still get this message. It just started doing this tonight.

Thanks,
Betty
 
B

BillR [MVP]

You'll need to check with your provider. It means security measures have
been put in place to prevent those who don't use your service from sending
email with that service.
You might need to make changes to use the email server.
 

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