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Google & Microsoft inboxes, fully and automatically setup for you in hours, ran by real cold email agency owners who actually answer when you need them.

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100 Microsoft inboxes per domain, white glove set up, monitored by us. Pay per domain, cancel any month.

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Same 100 Microsoft inboxes per domain. The difference is when you can start.

Whiteglove setup · deliverability monitoring with auto-swap · cancel any month.

Trusted by those you trust.

Sending Power1.5M/month
“We have been using Slicey for two years now. We have not seen performance as well as Slicey's infra, and we've tested at least 4 vendors. Reply rate is now 6%, positive reply rate is 40%. We never had to switch infra which says something on its own...if you're looking to double down on your infrastructure and ramp up which we just did by buying 5000 more inboxes, or if you're looking to diversify vendors, definitely jump onboard with Slicey. Karim will make sure you're well taken care of.”
Dan Brown
Dan Brown
leadnavigator.ai
Sending Power240K/month
“Slicey has always been there for us when deliverability has hit the fan. Reply rates jump once we use their pre-warmed, aged inboxes. They have been a Godsend for us, they always save the day. Slicey's Azure for sure, you won't be disappointed.”
Naufal Nugroho
Dualentry.com
Sending Power2.1M/month
“We have over 14k inboxes with Slicey and have booked hundreds of meetings with them. They have been putting a lot of care and attention into their product and services. Constantly innovating. Overall has been a great experience working with them and I'd highly recommend working with them.”
Nicholas Tanabe
Alphalead
“I've used slicey for a couple years now, Karim is a solid guy, very very knowledgeable. When Deliverability was such a challenge this summer, his inboxes had the best results getting into inboxes”
Stuart Brent
Stuart Brent
SaasyDB.com
“Slicey is doing really amazing things”
Cody Smith
Cody Smith
Founder of Emailguard.io / EmailBison.com
“I vouch for Slicey! (175+ Replies, 95 positive. $300k pipeline for a client)”
Luis Machado
Luis Machado
acquiropartners.com
“Working with Slicey has been great for our start-up. Karim is a very forward thinking individual and goes above and beyond the cost of the service. We are sending a large number of emails per day and getting interest in our service is improving every day. They are thorough and focused on your success even if that means them repeatedly messaging you to get something to help your business, we are making sales and are making profit in just weeks. Thank you Slicey! Highly recommend!”
David Leoncavallo
David Leoncavallo
scaperelaxation.com
“The campaign I'm running in bison with Slicey infra is the best performance from a campaign that I've ever seen and I've run thousands of campaigns and sent tens of millions of emails. I don't want to recommend this because i don't want others to know about it.”
Hollis Cameron
Hollis Cameron
Actionleads.io
“SEVEN TIMES THE REPLY OF INSTANTLY'S INFRASTRACTURE (3.5% vs 0.5%) NO WARMUP”
Alex Loughlin
Alex Loughlin
Altbound.com
“Slicey suite is goated. Karim is the GOAT when it comes to Emails/Infra, would highly recommend if you have any needs in that area.”
LiamYek
LiamYek
Clay Legend: Emtoss.co
“Legend! - I'm gonna use all 1k inboxes for months”
Harry Alnaimi
Harry Alnaimi
HGOmedia.com
“You guys are actually insane”
Khash
Khash
Co-founder: Nextcallagent.io
“Slicey is the backbone of Caeros. Better than superwave.”
Hamza T
Hamza T
“Now have 15k Inboxes with Slicey. Before Slicey, I used to pray to book 15 calls/month. Now if I book 15 a week, I have a mental breakdown.”
Adrian Reyes
Adrian Reyes
magnasummitllc.com
“Onboarding more of our clients to Slicey”
Frank Berefsky
Frank Berefsky
brandvault360.com
“Inboxes are performing despite having skipped warmup!”
Wouter Harink
Wouter Harink
genflowsagency.com
“I don't know anyone better than Slicey for infra”
Aleksandar Plavljanic
Aleksandar Plavljanic
TalentHaul.com
Sending Power2.1M/month
“We have over 14k inboxes with Slicey and have booked hundreds of meetings with them. They have been putting a lot of care and attention into their product and services. Constantly innovating. Overall has been a great experience working with them and I'd highly recommend working with them.”
Nicholas Tanabe
Alphalead
Sending Power240K/month
“Slicey has always been there for us when deliverability has hit the fan. Reply rates jump once we use their pre-warmed, aged inboxes. They have been a Godsend for us, they always save the day. Slicey's Azure for sure, you won't be disappointed.”
Naufal Nugroho
Dualentry.com
“I've used slicey for a couple years now, Karim is a solid guy, very very knowledgeable. When Deliverability was such a challenge this summer, his inboxes had the best results getting into inboxes”
Stuart Brent
Stuart Brent
SaasyDB.com
“Slicey is doing really amazing things”
Cody Smith
Cody Smith
Founder of Emailguard.io / EmailBison.com
“I vouch for Slicey! (175+ Replies, 95 positive. $300k pipeline for a client)”
Luis Machado
Luis Machado
acquiropartners.com
“Working with Slicey has been great for our start-up. Karim is a very forward thinking individual and goes above and beyond the cost of the service. We are sending a large number of emails per day and getting interest in our service is improving every day. They are thorough and focused on your success even if that means them repeatedly messaging you to get something to help your business, we are making sales and are making profit in just weeks. Thank you Slicey! Highly recommend!”
David Leoncavallo
David Leoncavallo
scaperelaxation.com
“The campaign I'm running in bison with Slicey infra is the best performance from a campaign that I've ever seen and I've run thousands of campaigns and sent tens of millions of emails. I don't want to recommend this because i don't want others to know about it.”
Hollis Cameron
Hollis Cameron
Actionleads.io
“SEVEN TIMES THE REPLY OF INSTANTLY'S INFRASTRACTURE (3.5% vs 0.5%) NO WARMUP”
Alex Loughlin
Alex Loughlin
Altbound.com
“Slicey suite is goated. Karim is the GOAT when it comes to Emails/Infra, would highly recommend if you have any needs in that area.”
LiamYek
LiamYek
Clay Legend: Emtoss.co
“Legend! - I'm gonna use all 1k inboxes for months”
Harry Alnaimi
Harry Alnaimi
HGOmedia.com
“You guys are actually insane”
Khash
Khash
Co-founder: Nextcallagent.io
“Slicey is the backbone of Caeros. Better than superwave.”
Hamza T
Hamza T
“Now have 15k Inboxes with Slicey. Before Slicey, I used to pray to book 15 calls/month. Now if I book 15 a week, I have a mental breakdown.”
Adrian Reyes
Adrian Reyes
magnasummitllc.com
“Onboarding more of our clients to Slicey”
Frank Berefsky
Frank Berefsky
brandvault360.com
“Inboxes are performing despite having skipped warmup!”
Wouter Harink
Wouter Harink
genflowsagency.com
Sending Power1.5M/month
“We have been using Slicey for two years now. We have not seen performance as well as Slicey's infra, and we've tested at least 4 vendors. Reply rate is now 6%, positive reply rate is 40%. We never had to switch infra which says something on its own...if you're looking to double down on your infrastructure and ramp up which we just did by buying 5000 more inboxes, or if you're looking to diversify vendors, definitely jump onboard with Slicey. Karim will make sure you're well taken care of.”
Dan Brown
Dan Brown
leadnavigator.ai
“I don't know anyone better than Slicey for infra”
Aleksandar Plavljanic
Aleksandar Plavljanic
TalentHaul.com

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