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mlts
Newbie
Joined: 12 November 2014
Online Status: Offline
Posts: 15
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| Posted: 09 February 2016 at 2:55am | IP Logged
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Hello,
We're using mailbee with a direct MX to send some mails for our clients. We're noticing that to a lot of those mails we are getting in return mails with following title and content:
"Successful Mail Delivery Report"
"This is the mail system at host <some domain>.
Your message was successfully delivered to the destination(s)
listed below. If the message was delivered to mailbox you will
receive no further notifications. Otherwise you may still receive
notifications of mail delivery errors from other systems.
The mail system
<someonesmail>: alias expanded
"
I've been trying to find what is causing this, but cannot. We didn't set up any such functionality that im aware of. Quick googling points to settings in people's client programs that ask for delivery notification, but we don't use that. We send everything with mailbee, without setting up any delivery notifications (at least not on purpose.).
Why am I getting those messages and is there any way to control that in mailbee?
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mlts
Newbie
Joined: 12 November 2014
Online Status: Offline
Posts: 15
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| Posted: 09 February 2016 at 2:59am | IP Logged
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Hmm, can't find "edit" here.
Anyway, I wanned to add that we're generating mails from scratch too. So our client's don't actually use third party client programs that could format the message in any way to add some unwelcome headers.
So, whatever is causing this, is either related to mailbee, or to something that we're doing while composing a message from scratch.
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Igor
AfterLogic Support
Joined: 24 June 2008
Location: United States
Online Status: Offline
Posts: 6038
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| Posted: 09 February 2016 at 5:23am | IP Logged
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MailBee doesn't automatically enforce that - some SMTP servers, however, may do so. We recommend checking SMTP logs, to see if any DSN-related configuration options are amended explicitly. You can send us the log for examination via HelpDesk.
--
Regards,
Igor, AfterLogic Support
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mlts
Newbie
Joined: 12 November 2014
Online Status: Offline
Posts: 15
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| Posted: 10 February 2016 at 1:31am | IP Logged
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Thanks for the reply, but we're not using any smtp servers with mailbee.
That's what I meant in my first message when saying about direct sending.
We don't do this: mailer.SmtpServers.Add("smtp.domain.com");
We do this: mailer.DnsServers.Add("x.y.z.q");
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Igor
AfterLogic Support
Joined: 24 June 2008
Location: United States
Online Status: Offline
Posts: 6038
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| Posted: 10 February 2016 at 1:47am | IP Logged
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Yes, we got that part. Using direct send approach assumes SMTP server is selected automatically, based on recipients' email addresses. And regardless of whether you're using relay SMTP server or not, it would be necessary to study SMTP logs in order to find out if DSN options were supplied.
--
Regards,
Igor, AfterLogic Support
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