OptMsg

Simple email verification to improve deliverability and boost email marketing metrics. You might not think much about your emails' bounce rates, but they could actually determine how many people see your emails. Internet regulators (such as ISPs and anti-spam groups) set limits for bounces, spam complaints and unsubscribe requests. If you send campaigns to inactive users and exceed these benchmarks, you will show up lower in inboxes and could even have your account suspended by your ESP. All companies that send email campaigns are assigned a sender reputation score. It's a bit like a credit score. If you send a lot of bounced or unwanted emails, this will leave a negative mark on your sender history. Also, just like credit history, once your reputation drops, it can be tricky to build it up again. Verifying your list means that you'll no longer send to dead email addresses.

ClearMyInbox is a bulk unsubscribe tool for Gmail, Outlook, Yahoo, Proton, Fastmail, Zoho and any IMAP mailbox. It scans your inbox, groups every newsletter and marketing sender it finds, and lets you unsubscribe individually or in bulk from one screen, then delete the backlog those senders left behind. What sets it apart is verification: 30 days after each unsubscribe, ClearMyInbox re-checks that sender and tells you whether they genuinely stopped or are still emailing, so you can see which unsubscribe links actually worked. Your inbox data is never sold, shared or monetised. Run by a UK company, ICO-registered, with access tokens encrypted at rest and an independent CASA Tier 2 security assessment. Free to start: three scans a month with manual unsubscribe. Pro adds unlimited scans, a full year of history, up to five mailboxes, one-click and bulk auto-unsubscribe, scheduled weekly scans and analytics.