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Zapier outlook integration not connecting to an ionos mailbox

We host email with IONOS but read it in Outlook. I want new website leads to trigger a formatted email from that address via Zapier, but the Outlook app only offers Microsoft accounts. Is there a way to use the IONOS SMTP details instead?
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kate_72 Oct 31, 2026
alex_ads
if IMAP fails too, the username is usually the culprit. it needs to be the full email address, not just the part before the @. and pick the folder explicitly in the trigger, otherwise you'll wonder why mail that gets filtered into a subfolder never fires anything.
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neha_serp Oct 12, 2026
alex_ads
the Microsoft Outlook app in Zapier signs in through a Microsoft account, so it only works if the mailbox actually lives on Microsoft (Outlook.com or a 365 / Exchange plan). a regular IONOS mailbox isn't, even if you read it in the Outlook desktop app. use IMAP by Zapier for incoming and SMTP by Zapier for sending instead, with the IONOS server details from your control panel (port 993 for IMAP, 587 or 465 for SMTP). if IONOS sold you their Microsoft 365 add-on, then the Outlook app should work and it's a login issue instead.
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