If reminder emails are sending but landing in spam, the fix is on the recipient's side: have them mark a Remindax email as "Not spam" and add the sending address — [email protected] — to their contacts/safe-sender list. For organization-wide reliability, ask the recipient's IT team to allowlist the Remindax sending domain.

Step 1 — Have the recipient rescue one email

Ask the recipient to:

  1. Open their spam/junk folder and find the Remindax reminder email (from [email protected]).
  2. Mark it Not spam (Gmail) or Not junk (Outlook).
  3. Add [email protected] to their contacts/address book.

After this, most mail providers deliver future emails to the inbox.

Step 2 — Allowlist the sender (best fix for teams)

For recipients inside a company, the most durable fix is to have their IT/email administrator allowlist Remindax's sending address and domain ([email protected] / remindax.com) so all reminder emails are trusted and bypass spam filtering.

Step 3 — Check the content of custom templates

Heavily styled emails, lots of links, or spam-trigger words in a custom email template can lower deliverability. If you've customized templates:

  • Keep a reasonable text-to-link ratio.
  • Avoid all-caps subject lines and spammy phrasing.
  • Use the email template test-send option to send yourself a copy first and see how it lands. (Test send is available for email templates.)

What happens next

Once a recipient marks an email as not-spam and/or their domain allowlists the sender, subsequent reminders in the sequence should reach the inbox normally.

Edge cases & gotchas

  • First email from a new sender is the most likely to be filtered; deliverability usually improves after the recipient interacts with one email.
  • Corporate mail filters can be stricter than personal ones — the allowlist step (Step 2) is often the only reliable fix in those environments.
  • A spam-filtered email is still a sent email — and will show a double tick in the item's reminder queue. If you're investigating a notification that genuinely didn't send, see Notifications didn't send.
  • Blacklisted contacts are a separate issue — Remindax won't send to them at all until they're whitelisted via support. See Contact blacklist warning.

Related questions

  • How do I stop reminders going to spam? Have the recipient mark one as not-spam and add [email protected] to contacts; for teams, allowlist the sender.
  • What address should our IT team allowlist? [email protected] (domain remindax.com).
  • Is a spam email the same as a failed send? No — it sent (double tick in the queue) but was filtered. Failed sends are a different issue.

Related articles

Notifications didn't send · How notifications & sequences fit together · Contact blacklist warning