← Integrations
SMTP / IMAP + ColdSend
Connect any SMTP or IMAP inbox to ColdSend. Use ColdSend's sequencer and reply tracking with mailboxes from any provider or host.
Inbox ProviderSMTP / IMAPUpdated Aug 15, 2026
What you get with SMTP / IMAP
Universal inbox supportBring any mailbox that supports SMTP and IMAP. ColdSend does not restrict you to specific providers or hosts.
Bulk import via CSVUpload dozens of inboxes at once with server, port, username, and password. ColdSend validates credentials automatically.
Native reply trackingReplies are fetched through IMAP and surfaced in ColdSend's unified inbox alongside your other sender accounts.
No per-mailbox feesSMTP/IMAP accounts count toward your plan's sender limit with no extra per-inbox charge from ColdSend.
Setup in 3 steps
1
Gather SMTP and IMAP credentialsCollect the server, port, username, and password for each mailbox you want to connect.
2
Add an SMTP/IMAP sender accountIn ColdSend, go to Sender Accounts, choose SMTP/IMAP, and enter the credentials for your mailbox.
3
Verify and sendColdSend will test the connection. Once verified, select the inbox in a campaign and start sending.
