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Document Mailgun as discouraged, and update Postmark remote address blocks
Summary: Ref T13669. See that task for discussion. Based on a disheartening interaction in June 2020, discourage use of Mailgun. Also update the default Postmark inbound address list, since they've added a new address. Test Plan: Read documentation, grepped for "mailgun". Maniphest Tasks: T13669 Differential Revision: https://secure.phabricator.com/D21738
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@ -33,10 +33,11 @@ final class PhabricatorMailPostmarkAdapter
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//
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// "Configuring Outbound Email" should be updated if this changes.
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//
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// These addresses were last updated in January 2019.
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// These addresses were last updated in December 2021.
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'50.31.156.6/32',
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'50.31.156.77/32',
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'18.217.206.57/32',
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'3.134.147.250/32',
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),
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);
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}
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@ -42,9 +42,9 @@ Some available approaches for delivering mail to Phabricator are:
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| Receive Mail With | Setup | Cost | Notes |
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|--------|-------|------|-------|
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| Mailgun | Easy | Cheap | Recommended |
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| Postmark | Easy | Cheap | Recommended |
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| SendGrid | Easy | Cheap | |
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| Mailgun | Easy | Cheap | Discouraged |
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| Local MTA | Difficult | Free | Discouraged |
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The remainder of this document walks through configuring Phabricator to
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@ -183,6 +183,9 @@ like this:
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example domain with your actual domain.
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- Configure a mailer in `cluster.mailers` with your Mailgun API key.
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Use of Mailgun is discouraged because of concerns that they may not be a
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trustworthy custodian of sensitive data. See <https://phurl.io/u/mailgun> for
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discussion and context.
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Postmark Setup
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==============
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@ -17,7 +17,6 @@ including a local mailer or various third-party services. Options include:
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| Send Mail With | Setup | Cost | Inbound | Media | Notes |
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|----------------|-------|------|---------|-------|-------|
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| Postmark | Easy | Cheap | Yes | Email | Recommended |
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| Mailgun | Easy | Cheap | Yes | Email | Recommended |
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| Amazon SES | Easy | Cheap | No | Email | |
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| SendGrid | Medium | Cheap | Yes | Email | |
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| Twilio | Easy | Cheap | No | SMS | Recommended |
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@ -26,14 +25,15 @@ including a local mailer or various third-party services. Options include:
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| Local SMTP | Hard | Free | No | Email | sendmail, postfix, etc |
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| Custom | Hard | Free | No | All | Write a custom mailer. |
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| Drop in a Hole | Easy | Free | No | All | Drops mail in a deep, dark hole. |
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| Mailgun | Easy | Cheap | Yes | Email | Discouraged |
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See below for details on how to select and configure mail delivery for each
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mailer.
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For email, Postmark or Mailgun are recommended because they make it easy to
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set up inbound and outbound mail and have good track records in our production
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services. Other services will also generally work well, but they may be more
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difficult to set up.
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For email, Postmark is recommended because it makes it easy to set up inbound
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and outbound mail and has a good track record in our production services. Other
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services will also generally work well, but they may be more difficult to set
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up.
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For SMS, Twilio or SNS are recommended. They're also your only upstream
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options.
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@ -87,8 +87,8 @@ A valid `cluster.mailers` configuration looks something like this:
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```lang=json
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[
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{
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"key": "mycompany-mailgun",
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"type": "mailgun",
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"key": "mycompany-postmark",
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"type": "postmark",
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"options": {
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"domain": "mycompany.com",
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"api-key": "..."
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@ -118,12 +118,12 @@ The supported keys for each mailer are:
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The `type` field can be used to select these mailer services:
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- `mailgun`: Use Mailgun.
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- `ses`: Use Amazon SES.
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- `sendgrid`: Use SendGrid.
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- `postmark`: Use Postmark.
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- `twilio`: Use Twilio.
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- `sns`: Use Amazon SNS.
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- `mailgun`: Use Mailgun.
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It also supports these local mailers:
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@ -204,11 +204,12 @@ The option accepts a list of CIDR ranges, like `1.2.3.4/16` (IPv4) or
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[
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"50.31.156.6/32",
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"50.31.156.77/32",
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"18.217.206.57/32"
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"18.217.206.57/32",
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"3.134.147.250/32"
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]
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```
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The default address ranges were last updated in January 2019, and were
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The default address ranges were last updated in December 2021, and were
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documented at: <https://postmarkapp.com/support/article/800-ips-for-firewalls>
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@ -220,6 +221,10 @@ Mailer: Mailgun
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| Inbound | Yes
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|---------|
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Use of Mailgun is discouraged because of concerns that they may not be a
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trustworthy custodian of sensitive data. See <https://phurl.io/u/mailgun> for
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discussion and context.
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Mailgun is a third-party email delivery service. You can learn more at
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<https://www.mailgun.com>. Mailgun is easy to configure and works well.
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@ -339,7 +344,7 @@ Since you'll be sending the mail yourself, you are subject to things like SPF
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rules, blackholes, and MTA configuration which are beyond the scope of this
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document. If you can already send outbound email from the command line or know
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how to configure it, this option is straightforward. If you have no idea how to
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do any of this, strongly consider using Postmark or Mailgun instead.
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do any of this, strongly consider using Postmark instead.
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To use this mailer, set `type` to `sendmail`, then configure these `options`:
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@ -416,7 +421,7 @@ highest priority group and go through them randomly, then fall back to the
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next group.
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For example, if you have two SMTP servers and you want to balance requests
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between them and then fall back to Mailgun if both fail, configure priorities
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between them and then fall back to Postmark if both fail, configure priorities
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like this:
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```lang=json
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@ -434,8 +439,8 @@ like this:
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"options": "..."
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},
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{
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"key": "mailgun-fallback",
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"type": "mailgun",
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"key": "postmark-fallback",
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"type": "postmark",
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"options": "..."
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}
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}
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@ -450,7 +455,7 @@ example, there are no other priority groups.
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If it still hasn't sent the mail, Phabricator will try servers which are not
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in any priority group, in the configured order. In this example there is
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only one such server, so it will try to send via Mailgun.
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only one such server, so it will try to send via Postmark.
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Message-ID Headers
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