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In the /etc/mail/access file, for the Connect key to permit relay, what is the notation that can be used to indicate that I want to permit relay for senders from all networks?

PS: I need it to open up a server temporarily for purposes of a training class.

Old Geezer
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  • Why do you want to make your sendmail an open spam/relay? Quite likely you confused terminology. – AnFi Jun 13 '22 at 02:26
  • I am conducting a class to demonstrate the SMTP protocol. I have set up `sendmail` on a Raspberry Pi for the duration of the class for the students to send out a mail command by command. – Old Geezer Jun 13 '22 at 05:52
  • IMHO it would make more sense to allow **relaying to** a few email domains or even a few email addresses. [Allowing relay to full email addresses in access table requires extra parameter `relaytofulladdress` to `FEATURE(access)` in sendmail.mc file] – AnFi Jun 13 '22 at 08:36

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