I don't see any place to change this - it looks pretty bogus, IMO.
Any ideas? Thanks!
Duh - default mailbox. Oops - my bad. Sorry.
I disagree that there is a default 'do-not-reply@...' email address. There are these:
And in a fresh configured install (Drupal 10.2.3, CiviCRM 5.69.5, I have not come across, and certainly have not created a 'do-not-reply@...' email address.
And yet, (in a fresh and completely configured install (Outbound SMTP is working correctly) I get the following error when I try to use the https://example.org/civicrm/mailing/subscribe
Error Mailing error: Failed to set sender: [email protected] [SMTP: Invalid response code received from SMTP server while sending email. This is often caused by a misconfiguration in Outbound Email settings. Please verify the settings at Administer CiviCRM >> Global Settings >> Outbound Email (SMTP). (code: 550, response: 5.7.1 Invalid credentials for relay [IP address]. The IP address you've 5.7.1 registered in your Workspace SMTP Relay service doesn't match the 5.7.1 domain of the account this email is being sent from. If you are 5.7.1 trying to relay mail from a domain that isn't registered under your 5.7.1 Workspace account or has empty envelope-from, you must configure your 5.7.1 mail server either to use SMTP AUTH to identify the sending domain or 5.7.1 to present one of your domain names in the HELO or EHLO command. For 5.7.1 more information, go to 5.7.1 https://support.google.com/a/answer/6140680#invalidcred t185-20020a815fc2000000b00607cc69d4bdsm982685ywb.50 - gsmtp)]
Mailing Error Unable to send email. Please report this message to the site administrator
This 'do-not-reply' string does not exist in the database. But it can be found in several files:
{ts}Leaving this blank will use the default which will be do-not-reply@default_domain where the default_domain will be the email domain address of your default mailing account also used for bounce handling.{/ts}
NOTE: there is no '[email protected]' so it appears this is being constructed likely by some of the code here. This is beyond my scope to easily fix.