Most mail delivery protocols and programs are conservative. Either a network connection is having problems, or one of the computers along the route is very slow or having other system problems. If you are receiving duplicates of only some of your mail, the cause may be technical difficulty along the delivery path. Mailing lists frequently subscribe to other mailing lists.
Look for multiple occurrences of your email address, as well as the addresses of other mailing lists you receive. Request to see the subscriber list and examine it. If you are receiving duplicate messages from only a single mailing list, you might be subscribed to that list more than once. To fix this problem, change your mail forwarding so that all mail messages, no matter what address they are sent to, have a final destination. The mail would never have a final delivery location. Mail sent to Coffee would go to Tea instead, but when Tea got it, it would send it right back to Coffee. If you set mail forwarding on Coffee to forward mail to Tea, and set forwarding on Tea to forward mail to Coffee, you create a mail forwarding loop. If you forward your email from one computer to another, it is possible to set up the forwarding in such a way that there is no final destination for your email messages.įor example, suppose you have accounts on two computers named Coffee and Tea.
However, if you receive many copies of every email message, a forwarding loop may be the cause of this as well. Most often, a mail forwarding loop prevents you from receiving any mail, causing mail sent to you to bounce back to the sender. Possible reasons for receiving multiple copies of email messages include: Mail forwarding loops Symptoms
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