What email address does the team-member invite come from?

Team-member invites from Valid Email Checker are sent through our transactional email service on the mail.validemailchecker.com subdomain. The From address is something like no-reply@mail.validemailchecker.com, the display name is 'Valid Email Checker,' and the body contains the inviting owner's name and email so the new member can recognize who pulled them in. Replying to the email goes either to no-reply (and bounces) or to a reply-to that points at the owner, depending on which template variant your team gets.

Why the From is no-reply, not the owner

Two reasons:

• Deliverability. Sending from no-reply@mail.validemailchecker.com means the message is signed with our SPF/DKIM/DMARC records, gets through corporate spam filters at a much higher rate than spoofing the owner's address would, and does not require the owner to authorize a third-party sender on their domain. If we tried to send 'from' the owner's you@yourcompany.com address, almost every modern mailbox would mark the message as suspicious.
• Consistency. No matter who invited the member, the From line is the same. New members learn to recognize 'Valid Email Checker <no-reply@mail.validemailchecker.com>' as an invite they can trust, instead of a different sender every time.

What the body of the invite looks like

The email is structured to give the member everything they need in the first screenful:

• Headline — '[Owner name] added you to their Valid Email Checker team.'
• Login email — the email the invite was sent to (same as the member's account email).
• Temporary password — the system-generated password the owner's browser created before the invite call. See how do team members log in for the first time for the password lifecycle.
• Sign-in button — a button labeled like Sign in to your account, pointing at https://app.validemailchecker.com/auth/login.
• Owner contact — the owner's name and email so the member knows who to ask if anything looks off.
• Footer — links to the help center and support.

If the invite never arrives

Standard troubleshooting order:

1. Check the spam/junk folder — corporate filters sometimes hold transactional mail temporarily.
2. Confirm the email address was typed correctly on the Team page. A common cause is a single-character typo.
3. Ask the IT team (for corporate addresses) whether mail.validemailchecker.com is allowlisted on the inbound mail gateway.
4. If still nothing, the dashboard shows the temporary password on screen after the invite — copy it and share through a secure channel like 1Password or Signal. The member can sign in with the email + password and the missing invite email becomes a non-issue.

Phishing concerns and how to verify legitimacy

A team-invite email is exactly the kind of message a phishing attacker would forge to harvest credentials. Two trust signals:

• Full headers should show SPF/DKIM pass for `mail.validemailchecker.com`. If you are unsure, view the message source in your mail client and look for Authentication-Results: ... spf=pass ... dkim=pass.
• The link in the Sign-in button must point at `https://app.validemailchecker.com/auth/login`. Hover the button (without clicking) and verify the URL before signing in. We never redirect through third-party domains for the login flow.