Smartproxy - Smartproxy is perhaps the most user-friendly way to access local data anywhere. It has global coverage with 195 locations, offers more than 40M residential proxies worldwide and a great deal of scraping solutions.

iLink - iLink enables users to log emails, lookup customers, create new CRM records and run powerful searches all without leaving Gmail.

Bright Data - World's largest proxy service with a residential proxy network of 72M IPs worldwide and proxy management interface for zero coding.

MailDrop - maildrop is a Mail delivery agent used by the Courier Mail Server. The maildrop MDA also includes filtering functionality. maildrop receives mail via stdin and delivers in both Maildir and mbox formats.

ProxyCompass - Get proxy servers featuring IPv4, HTTP/HTTPs, and SOCKS4/5 protocols. Choose from static and rotating IP addresses. ProxyCompass is here to support your business around the clock.

Sanebox - SaneBox is a cloud-based service that allows users to filter and manage their emails.