From what I've been reading, a better solution is to verify prior to accepting via SMTP, and then rejecting back to the originating server. That puts the NDR on that server, rather than your own. There have been some changes to the RFC and it's now suggested that NDRs not be sent under many conditions.

As for those bloody Microsoft pages, I'm very familiar with them. OH am I familiar with them. **banging head on desk** The email addresses dealing with SPF records are all outdated now, and I'm beginning to wonder if the pages themselves are really relevant. Once I finally get through to someone who knows what I'm talking about and get my issue resolved, I'll post the steps I had to take here.

I find yahoo to be my biggest problem. I even had to block yahoo for a while as it was just not worth the hassle. I still have far too many issues with them.

A month or two ago I had no problem, but after my forums were hacked into about a month ago, whenever a search bot or someone tried to access one of my forum pages (all my forum pages were down), it sent an email out to either gmail or yahoo to explain the error. Now that my forums are up and running again with a new host, I noticed that the verification email is not received for those who register with a Yahoo email or Gmail. But it is received by Hotmail.

So how do I solve this? For one I put a message in Notices for those who did not receive a verification email, saying a verification email is not received for Yahoo and Gmail because they must have my site on a blacklist. I don't do bulk emailings, so I am guessing why this happened was there was probably over 100,000 error reports sent out the past month when my forums were down so that is what created the blacklist.

Help.

Have you followed the instructions in this article? If yes, then its a matter of time before everything goes back to normal.

I believe none of the reasons in the article are why the blacklist occurred. The reason the blacklist occurred was because somewhere betweeen 100,000 and 1 million error reports were sent to my two emails, one at Yahoo an one at Gmail. Of course that has stopped since my forums are back up and running. Maybe overtime it will get reinstated?

If those emails have not been sent from your server (IP address) but from gmail/yahoo then its best to just change your websites email account. That is likely an instant fix.
If not then it becomes a matter of time. If providers see no new problems with an account, then it will be reinstated in time. However, I do not know if the same goes for such massive amounts sent.

Very good article Alfa1

Applaud your post

In vBulletin user banning options insert every email address and phrase that you can think of that might cause you being flagged as spam to the ban list, spam, postmaster, microsoft etc etc (because if a mod upsets a prick then a prick will sign up with the following to just be a prick)

I suggest assigning different email functions to different IP addressed and email addresses
newsletter=IP 1 : forum confirmation=IP 2 and so on, Now if you get marked as spam it shouldn't affect all your emails sent.

Now just pray that someone (that same prick) doesn't sign up using a honeypot address because most of the time these do not bounce and will result in your IP being flagged as spam.

If this happens then you will need even more IP addresses to do split email send outs to try and Isolate the bad email address. (start with the latest sign ups)

Before doing any mass sending I suggest sending a trial to spamcheck@sitesell.net making sure that in the subject line you put "TEST". The email will bounce straight back and give you a spam score. (if you don't put TEST in the subject and in capital letters your email will just be dropped from the server instead of bouncing back with the results)

For those of you that are using Photopost Pro: EZBounce does not remove subscriptions in Photopost Pro.

Another issue is that banned users continue to get their Photopost subscriptions. So until a solution is found, its best to turn off email functions for photopost completely.

i'm having trouble sending emails to several email accounts.

when i send an activation email to hotmail or a lost password email to hotmail these aren't deliverd to that specified email adres.

the server indiates everithing went going right.

the problem occured 2 years ago at that time oure server whent hacked.
after discoverd this, the server went taken down. and we installed on a different server on a different hosting provider a newer vbulletin. next we are removed from the blacklists after emailing that whe wen't hacked and how we solved it.

but we still have some problems with several email adressen.
(hotmail.* kpn-mail.nl livemail.*) what could be wrong.

i read the above article but i don't know where or how to start.