Cold Email Index Free PDF reports

Best for · 2026

Best Google Workspace inboxes for cold email

Google Workspace inboxes are the default choice when most of your prospects use Gmail. They cost more than private SMTP, and senders usually keep only a few inboxes per domain, so providers differ mainly in setup speed, warm-up and how they handle burned inboxes.

Included if the vendor confirms on its site: Google Workspace inboxes. Ordered by overall score.

Inbox providers 34

#ProviderWhere the points come fromScorePer inbox
1 MailOptimalGoogle · Microsoft · SMTP 83 $2/inbox$1 at volume
2 MailDeckGoogle · Microsoft · SMTP 76 $0.60/inbox$0.40 at volume
3 IcemailGoogle · Microsoft · SMTP 73 $2.50/inbox
4 ZapmailGoogle · Microsoft 63 $3.90/inbox$2.99 at volume
5 HypertideGoogle · Microsoft 62 $3.30/inbox$1 at volume
=6 ScaledMailGoogle · Microsoft · SMTP 60 $0.94/inbox
=6 Sender PoolsGoogle · Microsoft · SMTP 60 $40/mo
=6 SliceyGoogle · Microsoft 60 $0.49/inbox$0.25 at volume
=9 InboxKitGoogle · Microsoft 59 $3/inbox$2.50 at volume
=9 MailBombGoogle · Microsoft 59 $2/inbox$1 at volume
=11 MailpoolGoogle · Microsoft · SMTP 56 $3/inbox$2.60 at volume
=11 OSDomainsGoogle · Microsoft · SMTP 56 $3.38/inbox$1.97 at volume
13 Inbox NavigatorGoogle · Microsoft 54 $3/inbox
14 Email AstraGoogle · Microsoft 53 $5/inbox
15 Premium InboxesGoogle · Microsoft 52 $3.50/inbox$2.80 at volume
16 FrostmailerGoogle · Microsoft 51 $3.38/inbox$0.34 at volume
17 Endy InboxesGoogle · Microsoft 48 $3.50/inbox$3 at volume
=18 Cheap InboxesGoogle · Microsoft 47 $3.50/inbox$2.80 at volume
=18 ColdInfraGoogle · Microsoft 47 $3/inbox$2.50 at volume
20 InboxlogyGoogle · Microsoft 46 $3.50/inbox$2.80 at volume
=21 LiteMailGoogle · Microsoft 43 $3.70/inbox$2.85 at volume
=21 Puzzle InboxGoogle · Microsoft 43 $3/inbox$0.35 at volume
=21 WarmInboxesGoogle · Microsoft 43 $3.50/inbox$2 at volume
=24 PrimeforgeGoogle · Microsoft 40 $4.50/inbox
=24 SurgeMailGoogle 40 $2.27/inbox$1.90 at volume
=26 Diamond MailGoogle · Microsoft · SMTP 39 $4.99/inbox$3.99 at volume
=26 PeekerGoogle · Microsoft 39 $3.50/inbox$2.80 at volume
=26 PureMailGoogle · Microsoft 39 $3.30/inbox$2.90 at volume
29 ScaledInboxesGoogle · Microsoft 38 $3.50/inbox$0.50 at volume
=30 F60HostGoogle · Microsoft 33 $5/inbox
=30 Leads MonkyGoogle · Microsoft 33 $3.70/inbox$2.60 at volume
32 ColdSireGoogle · Microsoft 30 $6/inbox
33 GoBoxMateGoogle 28 $3.89/inbox$3.25 at volume
34 wizeMailsGoogle · SMTP 26 $22.38/inbox$18.09 at volume

Deliverability 27Inbox choice 16Sending 15API & AI 7Buying terms 10Setup cost 25

Each bar is the score split by group (group weight in grey). Score out of 100 from conditions confirmed on the vendor's own site, plus up to 25 points for the cost of a 30-inbox setup. Prices shown: monthly billing, smallest public package.

Cold email software 19

#ToolWhere the points come fromScoreFrom
1 InstantlySequencer with built-in inboxes 100 $47/mo
2 SmartleadSequencer with built-in inboxes 96 $39/mo
3 SaleshandySequencer with built-in inboxes 92 $41/mo
4 EmailchaserSequencer with built-in inboxes 91 $47/mo
5 SalesforgeSequencer with built-in inboxes 88 $48/mo
=6 PlusVibeSequencer with built-in inboxes 86 $37/mo
=6 WoodpeckerSequencer with built-in inboxes 86 $39/mo
=8 ManyreachSequencer with built-in inboxes 82 $79/mo
=8 SmartReach.ioSequencer with built-in inboxes 82 $29/mo
=10 lemlistCold email sequencer 81 $69/mo
=10 Reply.ioSequencer with built-in inboxes 81 $59/mo
=10 SalesBlinkSequencer with built-in inboxes 81 $29/mo
=10 Snov.ioAll-in-one sales platform 81 $39/mo
=10 SuperSendSequencer with built-in inboxes 81 $59/mo
15 ReachInboxSequencer with built-in inboxes 76 $30/mo
16 QuickProspSequencer with built-in inboxes 70 —
17 SkypSequencer with built-in inboxes 65 $199/mo
18 ColdrigSequencer with built-in inboxes 63 $49/mo
19 UnifyAll-in-one sales platform 60 $20/mo

Deliverability 40Workflow 30API & AI 15Buying terms 15

Each bar is the score split by group (group weight in grey). Score out of 100 from conditions confirmed on the vendor's own site. Prices shown: monthly billing, smallest public package.

Other lists: Microsoft 365 inboxes · Private SMTP inboxes · Warm-up included · For agencies · For AI agents · Software with inboxes · Try before you pay