issue with email delivery going through Cloudron mailing lists.

[d19dotca]

Attached is an image, as you can see this is severely impacting the ability for the strata owners to communicate to anyone on the list which goes to a Gmail account. (I originally tried to uploaded a larger screenshot showing more lines but the forum software prevented it, saying it was too large.)

[robi]

Are there any mail gateway routers? So you can use different services with known good deliverability?

[james]

@avatar1024 was this resolved?

[avatar1024]

I can't tell as I stopped using Cloudron mailing list a while ago because of this. But clearly others (e.g. @d19dotca) seem to still have the problem so looks like it hasn't been solved.

[jdaviescoates]

@avatar1024 said in issue with email delivery going through Cloudron mailing lists.:

I stopped using Cloudron mailing list a while ago because of this

Out of interest, what you using instead?

[d19dotca]

@james said in issue with email delivery going through Cloudron mailing lists.:

@avatar1024 was this resolved?

No, this hasn’t been resolved. This still needs to be improved in Cloudron mailing lists, please.

[d19dotca]

@jdaviescoates said in issue with email delivery going through Cloudron mailing lists.:

@avatar1024 said in issue with email delivery going through Cloudron mailing lists.:

I stopped using Cloudron mailing list a while ago because of this

Out of interest, what you using instead?

I think they were using the workaround of creating a mailbox and logging into roundcube to setup mail forwarding, so it kind of acts like the Cloudron mailing list in a way, but seems to be more reliable and doesn’t trigger Gmail’s “mass mail” protections.

[avatar1024]

@d19dotca said in issue with email delivery going through Cloudron mailing lists.:

I think they were using the workaround of creating a mailbox and logging into roundcube to setup mail forwarding, so it kind of acts like the Cloudron mailing list in a way, but seems to be more reliable and doesn’t trigger Gmail’s “mass mail” protections.

That's correct and also started using Lismonk for larger distribution lists.

[jdaviescoates]

Just to add, I've hit this too.

I've got a small Cloudron mailing list that includes a bunch of Gmail address. In the past I think it's been sending to them fine, but the most recent send to the list (which was sent from a Google Workspace email account that is also on the list) generated this error:

Upstream error: 421 4.7.28 Gmail has detected this message exceeded its quota for sending 4.7.28 messages with the same Message-ID. To best protect our users, the 4.7.28 message has been temporarily rejected. For more information, go to 4.7.28 https://support.google.com/mail/answer/188131 a640c23a62f3a-afcdd03a4b4si214278366b.769 - gsmtp

I guess I'll have to resort to sending these messages out another way too

[jdaviescoates]

@avatar1024 said in issue with email delivery going through Cloudron mailing lists.:

also started using Lismonk for larger distribution lists.

Is that what you're still doing? Do those somehow magically get through to Gmail addresses OK?