SMTPPING(1)

💌 SMTPPING — okay bestie, let's benchmark some SMTP 💌

So this is smtpping, and it lives in the General Commands Manual section (1), which is the "you just type this in your shell" section. It's giving little tool, big measurements. 🎀

✨ NAME ✨

smtpping — the SMTP benchmarking and measurement tool. That's it, that's the whole vibe. It pings, it measures, it slays. 💅

🦋 SYNOPSIS 🦋

smtpping [-dqrJ46C] [-p port] [-w wait] [-c count] [-P parallel]
         [-s size] [-f file] [-H hello] [-S sender] recipient [@server]

Look at all those little flags lined up like a fit check. 😌

🌸 DESCRIPTION 🌸

smtpping is a small (iconic, tiny, adorable) tool that does SMTP server delay, delay variation, and throughput measurements. Like a glow-up check for your mail server's latency. 🫶

You must invoke it with the recipient email address. Non-negotiable, no cap. 💖

Normally you should also specify the server, and you do that by prefixing it with @. If you don't? No worries, bestie — smtpping will go try to find the recipient domain's MX record, and if that doesn't work out it falls back on A/AAAA records. She's resourceful. 💅

The following options are available:

• -4 — Use IPv4. Old faithful. 🧚
• -6 — Use IPv6. Futuristic queen. 👑
• -p port — Specifies the TCP port to use. Default is 25.
• -w wait — Time in milliseconds to wait between pings. Default is 1000.
• -c count — Number of pings to send. Default is unlimited (she'll go forever, main character energy). 😭
• -P processes — Number of parallel worker processes. Default is 1. Now listen: to measure throughput, it's recommended to use -r and -w0 together with this option. That's the combo meal. 🍓
• -s size — Ping message size in kilobytes. Default is 10. 🚫 Cannot be used in conjunction with the -f option. Pick a lane.
• -f file — Send the specified email file (message/rfc822) instead of a generated message. 🚫 Cannot be used in conjunction with the -s option. Same energy, opposite direction.
• -H helo — HELO name. Default is localhost.localdomain. Say hi. 👋
• -S sender — Sender address. Default is <> (yes, literally the empty sender, she said "who? nobody"). 💀
• -C — Use CHUNKING (BDAT). Chunk it up. 🔥
• -r — Display rate instead of transaction delays. And again for the people in the back: to measure throughput, it's recommended to use -w0 and possibly -P with this option. ✨
• -q — Display less verbose output. Quiet luxury. 🤫
• -d — Display more verbose output. Tell me everything, I want the tea. ☕

🫶 AUTHORS 🫶

The smtpping program was written by Anders Berggren <anders@desh.se> and Erik Lax <erik@datahack.se> for Halon Security AB. Legends, honestly. Absolute icons. 👑

🌈 bye bestie 🌈

That's the whole page! This little cutie comes to you from Debian, dated December 3, 2015. Go ping something, measure the throughput, and remember: -r with -w0 and -P is the throughput trio. Periodt. 💖✨🎀🦋🌸💅