phpList mails rejected (possibly caused by exchange server)

StackOverflow https://stackoverflow.com/questions/19794231

Pregunta

I used an old version of phpList until it stopped working (certainly due to some internal server updates) and thus updated to version 3.0.5 last week. Everything went fine and I was even able to send out a few test mails.

Today, I tried to send a bigger amount of mails which caused bad headaches. I wanted to send about 2,800 mails and these are listed as "successfully sent" under Campaigns. But in the course of the day I received more and more "failure email notifications" in my inbox (now at about 1,100) with the following contents (translated and improved format by me):

Error with sending a message to the following recipients or lists: xyz123@aol.com

The email address of the recipient has not been found in the email system of the recipient. Microsoft Exchange will not try to resend this message. Check the email address and try to resend this message or contact your system administrator with the following diagnose text: The following organisation has rejected your message: mailin-02.mx.aol.com.

Diagnose information for administrators: Generating sever: abc987.kasserver.com xyz123@aol.com mailin-02.mx.aol.com

Recipient address rejected: aol.com> #SMTP#

Original message header:

  • Return-Path: -Received: by abc987.kasserver.com (Postfix, from userid 548) id AE51891; Mon, 4 Nov 2013 10:30:33 +0100 (CET)
  • To: xyz123@aol.com
  • Subject: =?UTF-8?ourSubject?=
  • Received: from Customer-Transfer.telemaxx.net [85.115.31.102] by www.ourdomain.de with HTTP; Mon, 04 Nov 2013 09:10:58 +0100 Date: Mon, 4 Nov 2013 09:11:27 +0100
  • From: Our Newsletter Name
  • Reply-To: Our Newsletter Name
  • Message-ID:
  • X-Priority: 3
  • X-Mailer: PHPMailer 5.2.5 (https://github.com/Synchro/PHPMailer/)
  • X-phpList-version: 3.0.5
  • X-MessageID: 247
  • X-ListMember: xyz123@aol.com
  • Precedence: bulk
  • Bounces-To: me@ourdomain.de
  • [...]
  • MIME-Version: 1.0
  • Content-Transfer-Encoding: 8bit
  • Content-Type: text/plain; charset="UTF-8"

Unfortunately, I don't have direct access to the server, so all I can offer is the following additional information:

  • PHP version: 5.3.18
  • MySQL version: 5.1.70

Any help is greatly appreciated, even if it's only a guess or little hints.

¿Fue útil?

Solución

I would guess that AOL is using the RATS-Dyna blacklist and rejected your messages because you are on that list.

You are probably on the list because your IP address resolves backwards to dd10.kasserver.com, which looks like a "generic_addressing_style.upstream_provider.com" that RATS-Dyna blocks.

To solve that, you need to contact your provider and see if they can give you a PTR record to point the address to a "real"-looking name. Probably just changing it from dd... to something else more complex will help.

Another possible way to get on the RATS-Dyna list is if you send mail too fast. You need to be careful not to look like a spam bot.

How fast is too fast?

Short answer: There is no hard number. You might have to experiment.

Long answer: Here are some mail policies from several hosting companies which might give you an idea. However, note how large the range is:

Note that some services like Amazon Simple Email Service can theoretically send much faster than the services listed above. That is because Amazon puts a lot of effort into maintaining the reputation of their servers and the receiving mail servers "know" that. Your basic web-hosting-with-email just isn't on the same level, so take it easy.

Open-source mailing list software Dada Mail defaults to sending a single message every 8 seconds, for a total of 450 messages/hour.

Licenciado bajo: CC-BY-SA con atribución
No afiliado a StackOverflow
scroll top