Andr? Gomes via Postfix-users:
> Hi
>
> I`m new on postfix universe.
> I configure a mail server on a dedicated link to send mails to my customers.
> The problem is, i have a old database, (2020, 2021) and i need check these
> emails to avoid any bounce, i dont want my ip on a blacklist ..
>
> For while i using mailsherpa
>
> https://github.com/customeros/mailsherpa
>
> Anyone have another option?
You could use the Postfix command line:
/usr/sbin/sendmail -bv address...
Documentation at https://www.postfix.org/sendmail.1.html:
-bv Do not collect or deliver a message. Instead, send an email
report after verifying each recipient address. This is useful for
testing address rewriting and routing configurations.
And it will tell you if the recipient was rejected. But, as Bill
Cole pointed out, if you do this multiple times against the same
mail service provider, then you may be blocked.
Wietse
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