Question

Windows Server 2003 - how to prevent Dropped Mail Folder Filling up - from asp.net web app

Asked by: ZekeLA

My ASP.NET 1.1 application sends out emails for various functions. If the emails fail outright or are delayed, they end up in the c:\inetpub\mailroot\drop folder. However, they are never deleted. In the course of the last year, this has led to 1 Gb of dropped mail which just recently warned me that my c: drive was more than 95% full.

I have several questions:
1) How are dropped emails normally cleaned up?
2) Is there a way to have dropped emails forwarded to a support mailbox so we are kept informed?
3) Should I be doing something in my web app to prevent these dropped emails from staying around permanently?

Thank you.

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Asked On
2009-01-23 at 09:21:03ID24078246
Tags

asp.net windows 2003 mailroot drop

,

IIS

Topics

.NET

,

Microsoft Windows Operating Systems

,

Microsoft IIS Web Server

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Answers

 

by: Dave_DietzPosted on 2009-01-26 at 15:02:30ID: 23472164

Failed deliveries and/or delayed email are not going to end up in the DROP folder - they might however end up in the BADMAIL folder.

The DROP folder is where the SMTP service puts email that is addressed to users in the domain it is specified to serve, i.e your SMTP server thinks it is domain.com so any email it handles that is addressed to someone @domain.com goes in the DROP folder.  Another service (delivery agent) is supposed to actually get the email to the right mailbox from there.

So, what you need to do is either change the domain your SMTP server thinks it is or stop including an address it thinks it handles in the recipient list.

Dave Dietz

 

by: ZekeLAPosted on 2009-01-26 at 15:50:00ID: 23472505

Thank you for the reply.

I thought I found them all in the Drop folder. It's possible I wasn't looking closely enough.

The emails in the folder were addressed like somebody@yahoo.com, somebodyelse@somecompany.com, etc. where the email is not addressed to our domain. The errors are "Delivery to the following recipients failed", "Unable to deliver message to the following recipients, due to being unable to connect successfully to the destination mail server", "Delivery to the following recipients has been delayed".

Are these messages more consistent with the Drop folder or with the BadMail folder?
Is there a way to automatically delete old emails from the BadMail folder?

 

by: ZekeLAPosted on 2009-02-11 at 15:12:31ID: 23617710

The emails are definitely ending up in the C:\Inetpub\mailroot\Drop folder with OS of MS Windows 2003 Standard Edition.

I know in at least one case the email was valid but the message was "Unable to deliver message to the following recipients, due to being unable to connect successfully to the destination mail server." That was for my own hotmail account.

I'll try contacting the hosting company.

 

by: ZekeLAPosted on 2009-02-11 at 15:14:28ID: 23617727

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