Email list cleaning software vs. service

Hello,

I'm new to internet marketing and have not found much information regarding how people with large lists avoid high bounce rates on their email blasts.

I know of services such as neverbounce,briteverify and kickbox but they are expensive when checking 50,000+ emails.

I found out about atomic email verifier which is a one time fee, but was hoping someone with experience in this area could advise me regarding how professionals clean their lists.

I scrape emails and send them messages and my bounce rate is very high. Spark post recommended I use a email list cleaning service.

I also saw that there are smtp based programs but they can get one blocked by the ISP unless one has alternating ip's and proxies? I don't really understand. I would love to get an smtp based system operational as it seems to be the most cost effective.

Thank you for any help!

I'm interested in the answer to your question as well. From my research software like Atomic Email Verify only offer basic verification while the online services claim highlyrics accurate results but comes with a high price tag.

Atomic will only remove domains that do not exist... And the bad appendices

I recommend you to use verifyrocket and kickbox, for me are the better

verifyrocket offer validation and verification, kickbox offer only validation

I almost forget it... Mailchimp has a very good company, it is called datavalidation

Note: I recommend buying fresh lead ... It's better than cleaning up a list ... lol

there was some dude on fiverr who does this.
personally, those online services are WAY to expensive.
but i fyou ask them via mail , they give you 500 for free

I am still looking for a solution to this. From this forum;
1. Atomic Email Verifier is pretty shit
2. GSA is good but I can't find it anywhere
3. Someone recommended zerobounce, kickbox, verifyrocket & data validation

From what I see, online tools does better than one time software. It's a shame because it gets expensive overtime, unless you are banking hard.

I for one use zerobounce[dot]net and it does a great job, it reduced my bounce rate from 20% to 3%. The prices aren't too spicy either. Go ahead and test it and see what it does for you. What I found really useful was the fact that it collected data such as name, gender and location for most emails checked.