The tidal wave of junk e-mail has prompted Internet service providers (ISP) and business owners to erect stronger spam filters, meant to block out spam and allow legitimate messages in.
The problem: A misconfigured spam filter will occasionally block out legitimate e-mail messages, too.
Advice: Ask your ISP or tech person how to tweak your spam filter to let in all legitimate e-mail. One solution: Add the e-mail addresses of your key contacts to your "white list," a list of people whose messages will always pass through your filter. Also, ask those contacts to add your e-mail address to their white list.