Hello, Since a few days I'm having a problem with sending e-mails. Whenever I send an e-mail I get a message back from the Mail Delivery System with the subject line 'Mail delivery failed: returning message to sender'. The message has the following text: "This message was created automatically by mail delivery software. A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed: [here the email address of the recipient: abcd@xxxxxxxx] Unrouteable address" I can only send the original e-mail by going into my 'Sent' Inbox and forwarding the e-mail to the same person I originally sent it to. I have never had this problem before. Does anyone know what causes it and how it can be solved? I hope it's not due to some virus I have in my Mac. Thanks very much for helping out. Hidde Tangerman -- Hidde Tangerman Freelance journalist T: 020 77 69 122 M: 06 45 739 202 www.hiddetangerman.nl ------------------------------------------------------------------------------ Come build with us! The BlackBerry(R) Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9 - 12, 2009. Register now! http://p.sf.net/sfu/devconference ----- squirrelmail-users mailing list Posting guidelines: http://squirrelmail.org/postingguidelines List address: squirrelmail-users@xxxxxxxxxxxxxxxxxxxxx List archives: http://news.gmane.org/gmane.mail.squirrelmail.user List info (subscribe/unsubscribe/change options): https://lists.sourceforge.net/lists/listinfo/squirrelmail-users