I have been running a couple of email announcement lists for a while, and want to clean out all (or most) of the addresses that are bouncing. What is a good way to do this?
I have a couple of email lists I use to promote local events. Everyone on them has asked to be on them, and, of course, unsub requests are processed promptly.
What I haven't been processing, though, are bounces. Every time I send an email to one of these lists, I get a lot of emails bouncing back. In general, this has not been a problem for me, so I haven't been deleting the bounced addresses from the list. (I hope this isn't a terribly irresponsible practice. I have a feeling you're not supposed to do this, though I'm not totally sure why.)
Now I'd like to clean up the lists, largely because I'm in the process changing how I send mails, probably to use Mandrill (previously
), and I realize having a lot of bad addresses in my list is not something bulk mail services like.
I wonder if there's an easy way for me to get a list of the addresses that should be removed from the list. I have a this of information to work with:
a) For one of my lists: several months worth of old "bounce" emails all in a single folder on my IMAP server (fastmail) and in my email client (thunderbird)
b) For my other list: A few months of old bounce messages are all in a single folder in my gmail account
Is there some piece of software or service that can parse these messages into some sort of easy to work with form, and give me a list of what addresses produced what sorts of bounces, and how often? In each case: The lists have something like 3000 addresses, and I think about 10% of the addresses are bad. I'm hoping for something free or cheap. (Less than, say, $50 for a one-time sweep of the bounces...)
(Less critically: I also have a couple of smaller, older lists, where I don't have current bounce messages. That is- I just have a list of email addresses. Is there any way to check whether those email addresses are still valid other than sending messages to those addresses?)
Any information would be much appreciated. Thanks!!!