Recent Posts

1

Development builds / Re: Microsoft Graph Support Now Available in stable

« Last post by Lippa on August 19, 2026, 02:16:35 pm »

I just wanted to thank you for releasing 2.6.1-049

Shared mailboxes are now working as expected.
I did not expect such a fast fix for this.

Thanks again.

Shared mailboxes working okay here also. But if i rename my main account it always asks me to re login and then renames it again. If fails to sync otherwise.

Any help here ones

2

Feature requests / Re: "Send as" for shared mailboxes

« Last post by Martin - Aqua Mail Support on August 17, 2026, 02:13:07 pm »

Hello egal8888,

We appreciate your input, and we're actively exploring the possibility of incorporating this feature into a future version of Aqua Mail. However, I'm unable to provide a precise timeline for its implementation at this moment, as we're evaluating various factors.

Your valuable feedback is incredibly important to us, as it helps us gauge the level of interest within our community. We genuinely appreciate your contribution to making Aqua Mail even better. Thank you for your continued support!

P.S. I have added your request to the user's wishlist.

3

Feature requests / "Send as" for shared mailboxes

« Last post by egal8888 on August 17, 2026, 10:07:22 am »

Could you please implement the "send as" and "send on behalf" functionality for M365 shared mailboxes?

Thanks in advance.

4

Development builds / Re: Microsoft Graph Support Now Available in stable

« Last post by egal8888 on August 17, 2026, 09:59:52 am »

I just wanted to thank you for releasing 2.6.1-049

Shared mailboxes are now working as expected.
I did not expect such a fast fix for this.

Thanks again.

5

Development builds / Re: Microsoft Graph Support Now Available in stable

« Last post by JSSMarathon on August 10, 2026, 05:09:52 am »

Thanks Martin — appreciate the update on the send fix and the Rich Text Editor workaround, I'll switch to that in the meantime.

One item I don't think got addressed yet: contact photos for my favorite/starred contacts aren't being retained since the update. They showed correctly before, and now they're missing or not displaying after syncing under the new Microsoft Graph setup.

Is this a known issue on your end, or would you like me to send a debug log to help track it down? Happy to provide whatever details are useful (account type is Microsoft 365 Business Basic, same account affected by the send bug).

6

How do I... / Outlook 365 connect as Thunderbird instead of Aquamail as third-party client

« Last post by epn on August 08, 2026, 10:10:39 am »

Good Morning,

Since yesterday, access to the corporate email account via Aquamail is blocked, while access with a third-party client identified as Thunderbird continues working; since only administrators can allow additional clients, could there be an option to identify Aquamail as a common third-party client instead?
 

    Thank you for any assistance.

7

Development builds / Re: Microsoft Graph Support Now Available in the Latest Aqua Mail Beta

« Last post by phred on August 08, 2026, 01:12:58 am »

AquaMail version/build: [please fill in from Settings > About AquaMail]

8

Development builds / Re: Microsoft Graph Support Now Available in stable

« Last post by Martin - Aqua Mail Support on August 07, 2026, 03:52:29 pm »

Regarding the Callendar issue:

We’re investigating this issue and believe we have an idea of where it may be coming from. However, we haven’t been able to reproduce it on our side yet.

At this point, it looks like the server may not be able to process all requested data before the connection times out.

Could you please confirm whether you have a large number of calendar events, especially recurring events or events with many attendees/attachments? This would help us narrow down the cause.

9

Development builds / Re: Microsoft Graph Support Now Available in the Latest Aqua Mail Beta

« Last post by Martin - Aqua Mail Support on August 07, 2026, 03:51:28 pm »

I'm running into a send failure on my Office 365 account since today's AquaMail update, which appears to coincide with the Microsoft Graph migration mentioned in your forum thread "Microsoft Graph Support Now Available in the Latest Aqua Mail Beta."



Device: Samsung Galaxy Z Fold 7 (Android)

AquaMail version/build: [please fill in from Settings > About AquaMail]

Account affected: Microsoft 365 Business Basic account on a custom domain (Exchange/O365 account type)



Error message on send:

"Error sending outgoing messages: Invalid server response: RequestBodyRead: Requested value 'plain' was not found."



Details:

- This started immediately after installing today's update.

- It only affects the O365/Exchange account. My other two IMAP/SMTP accounts on the same device send normally.

- I've already confirmed in Microsoft Entra ID that admin consent for AquaMail's Microsoft Graph permissions has been granted at the tenant level (17 Microsoft Graph delegated permissions showing under the Admin consent tab), so this doesn't appear to be a permissions/consent issue.

- Incoming mail sync appears unaffected; it's specifically outgoing/sending that fails.



Given the error text references a "plain" value not being found during request body parsing, this looks like it could be a content-type/message-format enum mismatch introduced in the new Graph-based send path.
Also contact pictures and calendar colors are not sinking correctly

Sorry for the inconvenience. We have identified the issue, and a fix is currently being tested for the next release.

In the meantime, please use the Rich Text Editor as a workaround until the update is available. Thank you for your patience, and apologies again for the trouble.

10

Development builds / Re: Microsoft Graph Support Now Available in the Latest Aqua Mail Beta

« Last post by Martin - Aqua Mail Support on August 07, 2026, 11:28:25 am »

Hi all,

Two things:

1. Microsoft is retiring/blocking EWS for Microsoft 365 and requiring modern OAuth access through Microsoft Graph. Aqua Mail must use Graph to keep mail sync working securely. Admin approval is controlled by your company tenant, and Aqua Mail cannot bypass it.

2. At the moment we do not have a confirmed timeframe for shared mailbox support in the new Microsoft Graph implementation. We are aware of the issue, and it is something we want to add in the next update, but I don’t want to give you an unreliable date.

Main Microsoft 365 mailbox support is being maintained. The reason for the recent change is exactly because Microsoft is moving away from the older EWS method and toward Microsoft Graph. Aqua Mail’s new Microsoft 365 setup is intended to keep normal/licensed mailboxes working with Microsoft’s newer requirements.

For your shared mailboxes, converting them to normal licensed mailboxes may work, because they would then have their own Microsoft 365 login and could be added as separate main accounts in Aqua Mail. Your IT admin would need to confirm the licensing, permissions, and any effect on sending/receiving rules before changing them.