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qmail stats:Recipient address rejected: User unknown in virtual alias table/Giving up
Hi,
I got some abnormal messages in my Qmail stats nightly report since 2 days ago. Some of the messages say:
del xdelay reason
1 1.82 130.161.131.4 does not like recipient./Remote host said: 550 <Saffron.Livingstone@CiTG.tudelft.nl>: Recipient address rejected: User unknown in virtual alias table/Giving up on 130.161.131.4./
1 5.39 130.161.131.4 does not like recipient./Remote host said: 550 <errai@CiTG.tudelft.nl>: Recipient address rejected: User unknown in virtual alias table/Giving up on 130.161.131.4./
1 6.53 193.173.48.130 does not like recipient./Remote host said: 550 Requested action not taken - Recipient not allowed/Giving up on 193.173.48.130./
1 8.55 195.110.124.132 does not like recipient./Remote host said: 553 5.1.1 sorry, no mailbox here by that name./Giving up on 195.110.124.132./
1 20.44 195.130.132.41 does not like recipient./Remote host said: 554 <icwrwgzxaa@rrf.be>: Recipient address rejected: User Unknown/Giving up on 195.130.132.41./
1 3.04 205.178.149.7 does not like recipient./Remote host said: 550 5.2.1 <ojqfkjrd@bmabev.com>... Mailbox disabled for this recipient/Giving up on 205.178.149.7./
1 4.13 208.113.200.31 does not like recipient./Remote host said: 550
Anyone has any idea what it means? It looks to me someone tried to relay with my mail server, i never have such messages shown at qmail stats before.
hope to get help, thanks!
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