One of our client is getting following error when sending email to a particular domain.
[email protected]
SMTP error from remote mail server after RCPT TO:<[email protected]>:
host [email protected] [9999:9999::99:99]:
550 5.7.1 <[email protected]>: Recipient address rejected:
Mail appeared to be SPAM or forged. Ask your Mail/DNS-Administrator to
correct
HELO and DNS MX settings or to get removed from DNSBLs; MTA helo:
server-host.domain.com, MTA hostname:
unknown[9999:9999:0000:99ff:0000:0000:0000:0000] (helo/hostname mismatch)
Any help?
[email protected]
SMTP error from remote mail server after RCPT TO:<[email protected]>:
host [email protected] [9999:9999::99:99]:
550 5.7.1 <[email protected]>: Recipient address rejected:
Mail appeared to be SPAM or forged. Ask your Mail/DNS-Administrator to
correct
HELO and DNS MX settings or to get removed from DNSBLs; MTA helo:
server-host.domain.com, MTA hostname:
unknown[9999:9999:0000:99ff:0000:0000:0000:0000] (helo/hostname mismatch)
Any help?