# IMAP authentication error (exmail.qq.com)

**URL:** <https://community.hubspot.com/t/imap-authentication-error-exmail-qq-com/149520>\
**Category:** Account & Settings\
**Tags:** admin, crm, free, contacts\
**Created:** [May 20, 2026, 9:25am UTC](https://community.hubspot.com/t/imap-authentication-error-exmail-qq-com/149520 "2026-05-20T09:25:05Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![WLer](https://avatars.discourse-cdn.com/v4/letter/w/48db29/32.png) [@WLer](https://community.hubspot.com/u/WLer)\
**Post date:** [May 20, 2026, 9:25am UTC](https://community.hubspot.com/t/imap-authentication-error-exmail-qq-com/149520/1 "2026-05-20T09:25:05Z")

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When I connect via IMAP, an error message appears. However, we can connect to other services via IMAP, such as Foxmail. We’ve ensured the port is correct.

It shows:

IMAP authentication error  
HubSpot cannot validate the connection with the corresponding IMAP server on the given port.

Incoming Mail (IMAP)  
Server: [imap.qq.com](http://imap.qq.com)  
Port: 993

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<div class="post-metadata">

**Author:** ![chighsmith](https://avatars.discourse-cdn.com/v4/letter/c/77aa72/32.png) [@chighsmith](https://community.hubspot.com/u/chighsmith)\
**Post date:** [May 20, 2026, 7:48pm UTC](https://community.hubspot.com/t/imap-authentication-error-exmail-qq-com/149520/2 "2026-05-20T19:48:41Z")

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Hi @WLer,  
Thank you for posting to the Community!  
I’d like to tag in our Top Contributors to see if they have experienced this before -- Hi @GrantCarlile @Kevin-C and [@Ben\_M](https://community.hubspot.com/t5/user/viewprofilepage/user-id/87451) do any of you have any ideas on this one?  
Thank you in advance!  
Cassie, Community Manager