Rspamd
Rspamd 4.3 fixes SPF evaluation order and rejects weak DKIM keys, with results that change.
A side-by-side editorial comparison of Textellent and Slack — release velocity, themes, recent moves, and the top alternatives to consider.
Textellent follows its franchise compliance push with AI texting helpers.
Textellent's last clear product news came in July: always-on compliance monitoring for franchise brands, then AI features including one-click Emojify and saving a message as a template. The AI post names few specifics, so its depth is unclear. The newest entries are SEO guides on instant messaging and smishing.
Slack now hosts any A2A agent without Slack-specific code.
Slack's developer channel is almost all agent plumbing. On 10 November Slack became an A2A (Agent2Agent) client: a team hosts its own agent, publishes an Agent Card, and Slack calls it when people talk to it, with no request URL, event handling or Slack-specific logic. This follows Slackbot skills managed through Web API methods, a Slack CLI that points coding agents to the Slack MCP server, and a new requirement that Work Objects embeds allow the slack-mcps.com frame ancestor.
Textellent's last clear product news came in July: always-on compliance monitoring for franchise brands, then AI features including one-click Emojify and saving a message as a template. The AI post names few specifics, so its depth is unclear. The newest entries are SEO guides on instant messaging and smishing.
The feed shows two product lines moving at once, compliance infrastructure for multi-location brands and lightweight AI assistance for everyday texters. The AI post describes a growing toolkit rather than a single launch. Content marketing outweighs product news, with no product entry since July.
Further additions to the AI toolkit are plausible given how the July post frames it, but no entry since then supports a firmer call.
Slack's developer channel is almost all agent plumbing. On 10 November Slack became an A2A (Agent2Agent) client: a team hosts its own agent, publishes an Agent Card, and Slack calls it when people talk to it, with no request URL, event handling or Slack-specific logic. This follows Slackbot skills managed through Web API methods, a Slack CLI that points coding agents to the Slack MCP server, and a new requirement that Work Objects embeds allow the slack-mcps.com frame ancestor.
Slack is lowering the cost of putting outside agents in front of its users: first skills as code, then MCP pointers for coding agents, now a standard protocol in place of the Slack app model for agents. The platform is positioning itself as the place where agents built anywhere meet the people who use them.
Expect more A2A follow-ups, such as agents appearing in Slackbot or skills surfaces and richer Agent Card features, given how fast the agent releases have stacked up since October.
Other Comms products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either Textellent or Slack.
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See all Textellent alternatives → · See all Slack alternatives →
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
They serve adjacent needs but don't currently overlap on shipped themes. Slack is currently shipping more aggressively (velocity 6.3 vs 0.0), with 1 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Slack is currently shipping more aggressively (velocity 6.3 vs 0.0), with 1 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Comms products to evaluate alongside.
Top Textellent alternatives in Comms are ranked by recent ship velocity. Browse the "Textellent alternatives" section above for the current picks, or visit /alternatives/textellent for the full list with editorial commentary on each.
Top Slack alternatives in Comms are ranked by recent ship velocity. Browse the "Slack alternatives" section above for the current picks, or visit /alternatives/slack for the full list with editorial commentary on each.