Email from address
Outbound From for verification, resets, and tickets. Align it with SMTP/SPF or mail lands in spam.
Email from address
Default From for mail the script sends: verification, password reset, tickets, and similar.
Where to find it
Admin → Settings → Settings (first tab) → Site identity → Email from address
Setting key: email_from
Typical value: noreply@yourdomain.com (full address) or a local-part like noreply (domain taken from contact email / SMTP identity depending on mode).
How it works
Outbound mode is separate: Email delivery mode (email_mode = sendmail / SMTP / Gmail).
There is no hard check that From equals your SMTP username. Spam filters still care: align From with the domain you authenticate (SPF/DKIM). A Gmail From while sending via VPS SMTP is a classic spam trigger — see Why mail lands in spam.
Common problems
Mail goes to spam
From domain does not match SMTP / SPF. Fix delivery mode first, then align From.
“Mailbox unavailable” bounces
From address does not exist at the provider. Use an address on a domain you control.
Gmail mode
From should match the Google account you authorized; token/From mismatches fail or look spoofed.