Jump to content
Outernaut

To Bounce or Not to Bounce?

Recommended Posts

I'm no longer able to find the article here about to Bounce or not to Bounce so apologies.

Preamble:
(using cPanel > Global Email Filters settings)

When adding a IP address to a black list,  I can choose "Fail With Message" and prompted with a text box to provide the "message".
There is a lot of chatter (82 pages @ 25 topics each with numerous replies) regarding bouncing, but no pro or cons to bouncing emails.

QUESTION:
GURUS! Is it best practice to bounce, or not to bounce and just delete them?

TIA,

~o~
 

Edited by Outernaut

Share this post


Link to post
Share on other sites
41 minutes ago, Outernaut said:

GURUS! Is it best practice to bounce, or not to bounce and just delete them?

 

I think some clarification needs to be around the word bounce.  If you are bouncing during the smtp connection, then the bounce will not originate from your server, but will be sent from the sending server.  If you accept the email, and then bounce later, it will be coming from your server.

My preference is to disable anything that might show my server's IP, such as a bounce after SMTP accept, and to have my server to reject during the SMTP connection so the IP in the bounce would be the sending server's IP, not mine.

Share this post


Link to post
Share on other sites
41 minutes ago, gnarlymarley said:

I think some clarification needs to be around the word bounce.  If you are bouncing during the smtp connection, then the bounce will not originate from your server, but will be sent from the sending server.  If you accept the email, and then bounce later, it will be coming from your server.

My preference is to disable anything that might show my server's IP, such as a bounce after SMTP accept, and to have my server to reject during the SMTP connection so the IP in the bounce would be the sending server's IP, not mine.

I will try to explain better:

Mail arrives at server and in cPanel > Global Email Filters is where I enter the IP, and choose what to do with that IP next time email arrives. The "Action" options are:

To Filter, I use:

  1. I enter a name for the filter (I use the offending IP - easier to find),
  2. then under Rules, from drop-down I choose "Any Header" > "Contains" and enter the IP address, or parts of it.
  3. and Under Actions, is where I choose what to do with it. My choices are:
  • Discard Message
  •  Redirect to email
  • Fail with message (bounce?)
  • Stop processing rules
  • Deliver to folder
  • Pipe to a program

 I assume these checks are done as email arrives. Do you think 'Fail with message' shows my IP or senders? 

Too, the server Host tells me they scan for spam using default of '5' and use Spamcop, so I shouldn't have to do anything, BUT, I have my settings via spam Assassin (now Apache SpamAssassin) set to 2.5 and raunchy spam with phishing, worm, or Trojans still come through daily. The generic spam, those with my winning the latest Apple stalker, a contest winner, parcel waiting for pick up or receive my millions of dollars on hold, ad nauseum arrive daily. 

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×