# Functional "big" group size? Quick question **URL:** \ **Category:** Mutual Help\ **Created:** [May 12, 2026, 9:13pm UTC](https://forum.delta.chat/t/functional-big-group-size-quick-question/5254 "2026-05-12T21:13:02Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![mikelgs](https://forum.delta.chat/user_avatar/forum.delta.chat/mikelgs/32/2680_2.png) [@mikelgs](https://forum.delta.chat/u/mikelgs)\ **Post date:** [May 12, 2026, 9:13pm UTC](https://forum.delta.chat/t/functional-big-group-size-quick-question/5254/1 "2026-05-12T21:13:02Z")
Hello, I have a quick question. Could you please tell me what is your experience with big groups? I am part of a 30 people group and it works very well (some people on nine.testrun relay and others in our own relay, wich is set as default chatmail I think). So, what size of group starts being slow or disfunctional, please? We are about to create a coordination system for up to 40…? people and it would be great to suggest DC, but it is better to ensure success… ---
**Author:** ![ian](https://forum.delta.chat/user_avatar/forum.delta.chat/ian/32/3164_2.png) [@ian](https://forum.delta.chat/u/ian)\ **Post date:** [May 12, 2026, 9:17pm UTC](https://forum.delta.chat/t/functional-big-group-size-quick-question/5254/2 "2026-05-12T21:17:14Z")
Haven’t seen issues with big groups yet, however, many of the hosted bots start to die if a certain combination of servers are resident in the same group (the probability of it happening grows with group size). It’s definitely a bug in either the code of multiple bots, the bot SDK or core (hopefully not the last). ---
**Author:** ![mikelgs](https://forum.delta.chat/user_avatar/forum.delta.chat/mikelgs/32/2680_2.png) [@mikelgs](https://forum.delta.chat/u/mikelgs)\ **Post date:** [May 17, 2026, 8:40pm UTC](https://forum.delta.chat/t/functional-big-group-size-quick-question/5254/3 "2026-05-17T20:40:31Z")
But what size groups have you been part of? 50? 100 people? More? I don’t care that much about bots, but that is good to know. Thanks ---
**Author:** ![ian](https://forum.delta.chat/user_avatar/forum.delta.chat/ian/32/3164_2.png) [@ian](https://forum.delta.chat/u/ian)\ **Post date:** [May 18, 2026, 8:45am UTC](https://forum.delta.chat/t/functional-big-group-size-quick-question/5254/4 "2026-05-18T08:45:52Z")
Don’t worry about it. A group of 40 people that you propose should work perfectly as long as all participating chatmail servers are well maintained. ---
**Author:** ![mikelgs](https://forum.delta.chat/user_avatar/forum.delta.chat/mikelgs/32/2680_2.png) [@mikelgs](https://forum.delta.chat/u/mikelgs)\ **Post date:** [May 18, 2026, 11:12am UTC](https://forum.delta.chat/t/functional-big-group-size-quick-question/5254/5 "2026-05-18T11:12:42Z")
Ok, I am still curious about the size limit of slowness or disfunctiolality, but I will propose DC for this group in particular. Thank you! ---
**Author:** ![adbenitez](https://forum.delta.chat/user_avatar/forum.delta.chat/adbenitez/32/2323_2.png) [@adbenitez](https://forum.delta.chat/u/adbenitez)\ **Post date:** [June 16, 2026, 7:32pm UTC](https://forum.delta.chat/t/functional-big-group-size-quick-question/5254/6 "2026-06-16T19:32:43Z")
groups of up to 500-1000 users should be fine, when reaching 1000 and above it should start to get a bit slower than usual because you have to encrypt for a lot of participants, also you have to send emails in batches of 1000 so in groups of +1000 you will start sending more than 1 email per message which will affect speed a bit in Signal 1000 is a strict limit of group size due to similar encryption slowness] usually such huge private groups are not practical/needed tho ---
**Author:** ![mikelgs](https://forum.delta.chat/user_avatar/forum.delta.chat/mikelgs/32/2680_2.png) [@mikelgs](https://forum.delta.chat/u/mikelgs)\ **Post date:** [June 17, 2026, 5:22am UTC](https://forum.delta.chat/t/functional-big-group-size-quick-question/5254/7 "2026-06-17T05:22:39Z")
Thank you for the answer!! That is what I wanted to know, it is more than needed 🎉👌👌 ---
**Author:** ![r10s](https://forum.delta.chat/user_avatar/forum.delta.chat/r10s/32/1513_2.png) [@r10s](https://forum.delta.chat/u/r10s)\ **Post date:** [October 6, 2026, 3:41pm UTC](https://forum.delta.chat/t/functional-big-group-size-quick-question/5254/8 "2026-10-06T15:41:03Z")