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I don't know if it is the right place to answer this question (please tell me I will remove it). I have an error message when using telnet to send an email to ab account I have specified in my postfix database (I am using ubuntu) :

451 4.3.0 <>: Temporary lookup failure

when I look at my logs I get this

unbuntu-v postfix/pickup[6798]: 3303850ACB: uid=118 from=<git>
Apr  3 22:18:48 unbuntu-v postfix/cleanup[8293]: warning: mysql:/etc/postfix/ lookup error for ""
Apr  3 22:18:48 unbuntu-v postfix/cleanup[8293]: warning: 3303850ACB: virtual_alias_maps map lookup problem for -- deferring delivery

but in my 'comptes' postfix's table, I have a email. And I don't know why my logs are referencing to a (indeed existing) git user. For information, here's my /etc/postfix/ file

hosts =
user = postfix
password = euler;.
dbname = postfix
table = alias
select_field = destination
where_field = source
additional_conditions = AND etat=1

Could someone help ?

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