Negative greeting error while sending email: Difference between revisions

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=MTA is not able to send emails when "localhost[127.0.0.1]" is missing from zimbraMtaMyNetworks.=
=MTA is not able to send emails when "localhost[127.0.0.1]" is missing from zimbraMtaMyNetworks=
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Example:
Example:
  zmprov ms `zmhostname` zimbraMtaMyNetworks '127.0.0.0/8 [::1]/128 10.0.1.34/32 10.0.2.35/32'
  zmprov ms `zmhostname` zimbraMtaMyNetworks '127.0.0.0/8 [::1]/128 10.0.1.34/32 10.0.2.35/32'
  zmmtactl restart
  zmcontrol restart


'''Note:''' If localhost network present into zimbraMtaMyNetworks, please open a support ticket with Zimbra support Team.
{{SubmittedBy|Gopal Bhandari}}
 
{{Article Footer|ZCS 8.8.15, ZCS 9.0|2023-12-20}}

Latest revision as of 11:15, 20 December 2023

MTA is not able to send emails when "localhost[127.0.0.1]" is missing from zimbraMtaMyNetworks


   KB 24436        Last updated on 2023-12-20  




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Problem

Negative greeting 554 5.7.1 <localhost[127.0.0.1] error in zimbra.log while sending email.

May 31 03:28:16 mta2 postfix/smtp[2326054]: 02DEC202BDF0: to=<bob@example.com>, relay=127.0.0.1[127.0.0.1]:10026, delay=0.18, delays=0.1/0.01/0/0.06, dsn=4.5.0, status=deferred (host 127.0.0.1[127.0.0.1] said: 451 4.5.0 id=2321174-01 - Temporary MTA failure on relaying, From MTA() during fwd-connect (Negative greeting: 554 5.7.1 <localhost[127.0.0.1]>: Client host rejected: Access denied): id=2321174-01 (in reply to end of DATA command))

Solution

Check the zimbraMtaMyNetworks output in all MTA servers:

zmprov -l gs zimbra.example.com zimbraMtaMyNetworks 

Confirm localhost (127.0.0.0/8 [::1]/128) network added or not. Add localhost network into zimbraMtaMyNetworks.

Example:

zmprov ms `zmhostname` zimbraMtaMyNetworks '127.0.0.0/8 [::1]/128 10.0.1.34/32 10.0.2.35/32'
zmcontrol restart
Submitted by: Gopal Bhandari
Verified Against: ZCS 8.8.15, ZCS 9.0 Date Created: 2023-12-20
Article ID: https://wiki.zimbra.com/index.php?title=Negative_greeting_error_while_sending_email Date Modified: 2023-12-20



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