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You know, how much you use instant messaging apps and how little you use email.
你们用多少即时通信软件用多少邮件，自己很清楚
And you guys are probably, on the high end of the scale for email, because you're in Silicon Valley.
你们这些大学生可能用邮件还算多的因为你们在硅谷这
That being said, on email the things to think about.
用邮件进行推送时要考虑一下实际情况
Email, SMS, and push notifications all behave the same way.
邮件，短信以及推送通知异曲同工
They all have questions of deliverability.
它们都有局限性
So to finish first, first you have to finish.
要想最先完成，首先必须完成
Your email has to get to someones inbox.
你的邮件要发到用户的收件箱
So if you send a lot of spam and you end up with dirty IP's,
如果你发大量的垃圾邮件，你的IP就会被拉入黑名单
or you send spam from shared servers where other people are.
如果你使用公共服务器发送垃圾邮件
Or if you send email notifications, from shared servers where other people are sending spam from,
哦，不对，你发送的是正常的邮件而别人用同样的服务器发送垃圾邮件
you are gonna end up being put in the spam folder consistently, and your email will fail completely.
你发的邮件会经常进入垃圾邮件箱客户根本不会看你的邮件
You may end up, being blocked and have your email bounce.
你的邮件会被封杀或退回
There's a lot of stuff around email where you have to look.
使用邮件，这些事情需要注意
When you receive feedback from the servers you are sending email too.
如果你收反馈和发消息邮件用的是同一个邮件服务器
500 series errors versus 400 series errors, you have to be respectful of how those are handled.
会出现400或500系列的错误你不得不接受
If someone gives you a hard bounce, retry once or twice and, then stop trying.
如果有收件人退回了你的邮件再试一两次，如果还是行不通，就罢手吧
Because if you are someone who abuses people's inboxes,
因为，一旦你被认定是发骚扰邮件
the email companies spam folder you and it's very hard to get out.
邮件公司会把你列为垃圾邮件发送者，你就难以翻身了
If you get caught, on a Spamhaus link, or anything like that, it's very hard to get out.
一旦你被抓住，列入了Spamhaus中你就难以翻身了
It's really important with email, that you are a high-class citizen, that you do good work with email
这点对于邮件推送很重要你要文明使用邮件使用邮件做正当的事
because you want to have deliverability for the long run.
因为你要从长远角度考虑，持续推送消息
That counts for push notifications and SMS2.
上述内容同样适用于推送通知和短信
With SMS, you can go and buy SMS traffic,
使用短信的话，你可以通过灰色手段
via gray routes with people with their having phones strung up.
购买短信包，从事此行当的人将手机和电脑绑定
Attached to a like computer and pumping out SMS's.
使用电脑发送短信
That works for a time but it always get shut down.
这样做一段时间还行，不过最终会弄砸
And I've seen so many companies make these mistakes.
我见过很多公司犯过这样的错误
Where they think they're gonna grow by using these kind of tactics.
他们认为通过这样的手段能获取增长
