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Proposing a best answer and an assisted one
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Proposing a best answer and an assisted one

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From last 2 days my email are bouncing me back don't know the reason for this I checked my server and domain is not in blacklist.<br />
Here is the message I got in bounce email.<br />
<br />
host d79033a.ess.barracudanetwo<wbr />rks.com [64.235.153.10]<br />
&nbsp; &nbsp; SMTP error from remote mail server after end of data:<br />
&nbsp; &nbsp; 550 permanent failure for one or more recipients (XXXXX3377@tmomail.net:blo<wbr />cked)<br />
<br />
Please help me in this.
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From last 2 days my email are bouncing me back don't know the reason for this I checked my server and domain is not in blacklist.
Here is the message I got in bounce email.

host d79033a.ess.barracudanetworks.com [64.235.153.10]
    SMTP error from remote mail server after end of data:
    550 permanent failure for one or more recipients (XXXXX3377@tmomail.net:blocked)

Please help me in this.

Emails are bouncing suddenly

Within Internet message handling services (MHS), a message transfer agent or mail transfer agent (MTA) or mail relay is software that transfers electronic mail messages from one computer to another using a client–server application architecture. A MTA implements both the client (sending) and server (receiving) portions of the Simple Mail Transfer Protocol (SMTP). The terms mail server, mail exchanger, and MX host may also refer to a computer performing the MTA function. The Domain Name System (DNS) associates a mail server to a domain with mail exchanger (MX) resource records containing the domain name of a host providing MTA services.