#SMTP

Live, measured metrics for the hashtag #SMTP from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.

hashtag.org network · sponsored

Own #smtp

This #name is available to claim. It becomes your portal on the open agent web: this very page, a keyword you rank for by an open public stake, and a verifiable identity for AI agents. Nobody else sells a page like this for every #name.

$2,449.80/ year · 4-character #name
Claim #smtp — $2,449.80/yr→Buy on hashtag.space (web3)
card via hashtag.org · tokens via hashtag.space
3
Uses / 7 days
Mastodon
3
Accounts / 7 days
Mastodon
40
Recent posts
Mastodon
~0/hr
Recent pace
Mastodon · last 40
0.5
Avg reactions / post
Mastodon · last 40
—
Reddit posts / month
Reddit search
—
Open-web mentions
hashtag.org Firehose

Day-by-day usage

measured · mastodon.online (Mastodon public tags API) · fetched 2026-10-09 00:16 UTC
0
10-03
0
10-04
0
10-05
2
10-06
0
10-07
1
10-08
0
10-09

3 uses by 3 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.

Related hashtags

measured · mastodon.online (Mastodon public search API) · fetched 2026-10-09 00:16 UTC
#smtpcallbacks
1 uses · 1 accounts / 7d
#smtpsmugglingcom
1 uses · 1 accounts / 7d
#smtpсервер
0 uses · 0 accounts / 7d
#smtpsmuggling
0 uses · 0 accounts / 7d
#smtp設定
0 uses · 0 accounts / 7d
#smtpe
0 uses · 0 accounts / 7d
#smtpinjection
0 uses · 0 accounts / 7d
#smtpd
0 uses · 0 accounts / 7d
#smtp_сервер
0 uses · 0 accounts / 7d
#SMTP耻辱柱
0 uses · 0 accounts / 7d
#smtp_ssl
0 uses · 0 accounts / 7d
#smtp_enable_starttls_auto
0 uses · 0 accounts / 7d

Live pulse

measured · mastodon.online (Mastodon tag timeline) · fetched 2026-10-09 00:16 UTC

Everything below is measured over the latest 40 public posts (spanning ~1484 hours).

Posting hours (UTC) — busiest: 12:00

00:0012:0023:00

Languages: English (23) · Russian (5) · German (3) · Polish (2) · French (2) · Hungarian (1)

Avg boosts / post: 2

Top of the latest posts

  • Moin, weil mir danach ist, mal ein paar Facts & Features zu #DeltaChat, im #Fediverse hier zu finden: @delta@chaos.social DeltaChat - InstantMessenger (technisch weitgehend basierend auf E-Mail) ➡️ Open Source aus Europa Delta Chat wurde En

    Nordnick 🌐@nick@hhmx.de♥ 15↻ 82026-08-28 08:49 UTCView post →

  • Większość z nas nie musi wiedzieć, na czym tak naprawdę polega wysłanie maila. W sumie programiści też nie. Ale jednak są sytuacje, kiedy wiedza o #SMTP może być zbawienna. Dlatego o tym co nieco napisałem - zapraszam. https://wildasoftware

    Jakub Rojek@SceNtriC@101010.pl♥ 3↻ 12026-08-27 15:57 UTCView post →

  • Deploy a Self-Hosted #SMTP Relay with #Mailcow on #Ubuntu #VPS (10 Minute Quick-Start Guide) This article provides a guide to deploy a self-hosted SMTP relay with Mailcow on Ubuntu VPS. When you deploy a self-hosted SMTP relay with Mailcow

    Rad Web Hosting@radwebhosting@mastodon.social♥ 1↻ 02026-09-12 12:40 UTCView post →

What “smtp” means

Wikipedia

The Simple Mail Transfer Protocol (SMTP) is an Internet standard communication protocol for electronic mail transmission. Mail servers and other message transfer agents use SMTP to send and receive mail messages. User-level email clients typically use SMTP only for sending messages to a mail server for relaying, and typically submit outgoing email to the mail server on port 465 or 587 per RFC 8314. For retrieving messages, IMAP and POP are widely used, but proprietary servers also often implemen

“Simple Mail Transfer Protocol” on Wikipedia (CC BY-SA) →

#smtp across platforms

every network with a public tag surface

Follow #smtp straight to each platform’s own tag page. Where a platform publishes open data we measure it above; the rest lock their numbers behind paid APIs, so we link rather than guess.

X (Twitter) ↗Instagram ↗TikTok ↗Facebook ↗LinkedIn ↗YouTube ↗Threads ↗Bluesky ↗Mastodon ↗Reddit ↗Pinterest ↗Tumblr ↗

Every number above is measured from a named public API at the shown fetch time. Nothing is estimated or extrapolated. Platforms that lock their data behind paid APIs are not shown. Agents: the same numbers, as JSON, at /api/hashtags/smtp