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With this specific e-mail addressee mail only goes through when sent from iPhone which is why I asked her to stop the involvement of the IT people at her end, since I had assumed I was blacklisted there for some reason. I also tried another option - signed in as Guest on my Macbook and installed the gmail account in Mail - could send it from the Guest profile!

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3. Why Does Email Bounce?.
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But then again not when logged in as myself. Which is why I assume there is one file in my User Mail library that prevents this email from going through to one specific of many recipients.

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I tried by restoring the Mail library from Time Machine from the time before this problem started , but this did not solve the problem either. Jun 1, 5: Mail typically tries to complete an email address after you or I have typed a few letters. I wonder if Mail's own address book has some sort of malformed or otherwise wrong email address for this particular friend or contact. That might explain why it worked from Guest. I would take a look in your Sent mailbox to see if there is anything wrong with the outgoing email address.

Jun 2, 1: Richard Glendon In response to W. Richard Glendon. No, I have checked the address also whether quoted correctly in the Maildelivery return message - it is correct there. We even tried it by me replying to one of my friend's messages - also no luck. Maildelivery error message for specific contact when sent from Macbook, NOT when sending from iPhone. More Less.

Communities Contact Support. Sign in. Browse Search. Ask a question. User profile for user: The error message I receive is: This message was created automatically by mail delivery software. LVL It certainly looks like someone is sending out mail with a spoofed sender of whatever mydomain. These situations usually resolve themselves after some time.

Do you need to have a "catchall" open? BTW, these error messages aren't technically SPAM, really, so an antispam software shouldn't be expected to catch them. How would I turn off a catch all? Also, if someone is sending spoofed emails in my company name, surely this is damaging my reputation. Is there anyway to stop a spammer doing this? Learn More! I'd have thought a server default setting would be to reject all messages that didn't have a valid recipient a user in the domain and a "catchall" would have to be created willingly by the server administrator.

I suppose this is different with different mail server programs so I can only suggest you view the man page or other documentation for the server software.

One explanation is that someone, who has my address in his address book, got his machine infected by a mass-mailing virus that sends messages with sender values caught from the address book. Thanks to MS, all viruses know where to look for addresses and documents. This could happen to a company, too. If I knew how to stop this thing I'd quit my job and make some money selling the idea. RanjeetRain Commented: THere are three possible reasons why this might happen to someone. But for 3 , which sounds like most likely the case here, sorry but really there are no cures otehr than "Tit for Tat".

You can also send messages to these people non-stop, just to give them a little back of what they are doing. From your question text, it is clear that what you are getting is "bounce backs". Unless and untill What you may do is, email the administrators of the offending domain. Try contacting the admins on postmaster ultradns.

Why Does Email Bounce? - Ask Leo!

If they are sensible people they will try to help you. Even they might be just being used as an OPen Relay. So just have a chat with them and see how they respond. If they don't hear you, you can assume they are spammers and depending on the law in your state, you can actually sue them, as you have full headers of the original mails that are causing problem for you. Experts Exchange Solution brought to you by Your issues matter to us.

I am also experiencing this same problem. I have contacted Earthlink, my domain host, I have changed my password for access, I have assigned specific addresses to my 30 available mailboxes, etc. Nothing seems to help! This has got to stop and I don't know what to do about it. I get between 1, - 2, bounced emails a day. I can't possibly check my email for Legitimate Email due to the sheer number of emails received.

I have to automatically Delete All of them without checking, thereby missing Legitimate, Business related emails! I have tried everything I can come up with to stop this hijacking of my mailboxes It's more than this solution. Get answers and train to solve all your tech problems - anytime, anywhere.

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