docs: Replace support@zulipchat.com with support@zulip.com.

The new address is cleaner and shorter.

docs/production/mobile-push-notifications.md

@@ -36,7 +36,7 @@ follows:
    This command will print the registration data it would send to the
    mobile push notifications service, ask you to accept the terms of
    service, and if you accept, register your server. If you have trouble,
-   email support@zulipchat.com with the output of this command.
+   email support@zulip.com with the output of this command.
 
 1. If you or your users have already set up the Zulip mobile app,
    you'll each need to log out and log back in again in order to start
@@ -146,7 +146,7 @@ and privacy in mind:
   by a small team of security expert engineers.
 
 If you have any questions about the security model, contact
-support@zulipchat.com.
+support@zulip.com.
 
 ## Submitting statistics
 

templates/corporate/billing.html

@@ -135,7 +135,7 @@
                 <hr>
                 <div class="support-link">
                     <p>
-                        Contact <a href="mailto:support@zulipchat.com">support@zulipchat.com</a>
+                        Contact <a href="mailto:support@zulip.com">support@zulip.com</a>
                         for billing history or to make changes to your subscription.
                     </p>
                 </div>
@@ -155,7 +155,7 @@
                 </div>
                 <div class="support-link">
                     <p>
-                        Contact <a href="mailto:support@zulipchat.com">support@zulipchat.com</a> for billing history.
+                        Contact <a href="mailto:support@zulip.com">support@zulip.com</a> for billing history.
                     </p>
                 </div>
                 {% else %}

templates/corporate/upgrade.html

@@ -222,7 +222,7 @@
                 <div class="support-link">
                     <p>
                         We're happy to help!
-                        Contact <a href="mailto:support@zulipchat.com">support@zulipchat.com</a>
+                        Contact <a href="mailto:support@zulip.com">support@zulip.com</a>
                         for any billing-related questions.
                     </p>
                 </div>

templates/zerver/atlassian.md

@@ -66,6 +66,6 @@ chat model.
 ## Decide on a payment plan.
 
 See [zulipchat.com/plans](https://zulipchat.com/plans) for Cloud
-pricing, or email <support@zulipchat.com> for on-premise support
+pricing, or email <support@zulip.com> for on-premise support
 options. We also offer affordable paid installation help that includes
 installing and configuring Zulip.

templates/zerver/faq.html

@@ -64,7 +64,7 @@
                     <a href="https://zulip.readthedocs.io/en/latest/production/export-and-import.html">on-premise</a>) ensure you can always move
                     from our hosting to yours (and back). If
                     you&rsquo;d like to do a migration, email
-                    support@zulipchat.com and we’ll get you started!
+                    support@zulip.com and we’ll get you started!
                 </p>
             </div>
             <div class="faq">

templates/zerver/for/mystery-hunt.md

@@ -43,7 +43,7 @@ it’s easy to write bots that send things into or out of Zulip.
 
 [Click here](https://zulipchat.com/new) to create an organization; it
 only takes only about 30 seconds. If you decide to continue using it, just email
-support@zulipchat.com to tell us you’re a mystery hunt team.
+support@zulip.com to tell us you’re a mystery hunt team.
 
 **Where do I go for further information?**
 

templates/zerver/for/open-source.md

@@ -97,7 +97,7 @@ commercial offerings. This offer extends to any community involved in
 supporting free and open source software: development projects, foundations,
 meetups, hackathons, conference committees, and more. If you’re not sure
 whether your organization qualifies, send us an email at
-support@zulipchat.com.
+support@zulip.com.
 
 ### Moderation suite.
 

templates/zerver/for/research.md

@@ -88,7 +88,7 @@ like Category Theory).
 
 This free hosting is supported by (and is identical to)
 zulipchat.com’s commercial offerings.  If you’re not sure whether your
-organization qualifies, send us an email at support@zulipchat.com.
+organization qualifies, send us an email at support@zulip.com.
 
 ### Native LaTeX support powered by KaTeX
 

templates/zerver/help/configure-authentication-methods.md

@@ -9,7 +9,7 @@ these methods.
 
 LDAP and various custom SSO login methods are currently restricted to
 self-hosted Zulips only.  SAML authentication is supported by Zulip
-Cloud but requires contacting support@zulipchat.com to configure it.
+Cloud but requires contacting support@zulip.com to configure it.
 
 **Note:** If you are running your own server,
 [read this](https://zulip.readthedocs.io/en/latest/production/authentication-methods.html)

templates/zerver/help/contact-support.md

@@ -9,7 +9,7 @@ channels:
   to a couple days later, but Zulip's threading makes it easy for us
   to reply to every thread. Please read the community conventions
   (linked above) and choose a topic when starting a conversation.
-* We aim to reply to [email support](mailto:support@zulipchat.com)
+* We aim to reply to [email support](mailto:support@zulip.com)
   questions within a business day. Simple queries or requests for
   data imports generally receive faster replies.
 * GitHub [server](https://github.com/zulip/zulip/issues/new), web
@@ -29,5 +29,5 @@ organization.
 
 ## Billing and commercial questions
 
-We provide exclusively [email support](mailto:support@zulipchat.com)
+We provide exclusively [email support](mailto:support@zulip.com)
 for sales, billing, partnerships, and other commercial questions.

templates/zerver/help/export-your-organization.md

@@ -43,7 +43,7 @@ with lots of messages or uploaded files.
 
 {start_tabs}
 
-1. Email support@zulipchat.com with your zulipchat.com subdomain, asking for
+1. Email support@zulip.com with your zulipchat.com subdomain, asking for
    a full export with member consent. Email us from the same address that
    you use to sign in to Zulip.
 
@@ -72,7 +72,7 @@ import.
 This export is limited to paid Zulip Standard customers, though in rare
 cases may be available to other organizations in case of due legal process.
 
-To start this export, email support@zulipchat.com with your zulipchat.com
+To start this export, email support@zulip.com with your zulipchat.com
 subdomain, asking for a full export without member consent.
 
 You'll also need to email us evidence that you have authority to read

templates/zerver/help/gdpr-compliance.md

@@ -115,7 +115,7 @@ GDPR:
 * The [Zulip REST API](https://zulipchat.com/api/rest) lets you
   automate your processes for handling GDPR requests.
 
-Contact [support@zulipchat.com](mailto:support@zulipchat.com) for
+Contact [support@zulip.com](mailto:support@zulip.com) for
 any assistance related to this topic.
 
 ## GDPR compliance on-premises
@@ -141,5 +141,5 @@ may be useful:
 There's a lot more that goes into GDPR compliance, including securing
 your server infrastructure responsibly, internal policies around
 access, logging, and backups, etc.  If you need detailed guidance, we
-recommend contacting support@zulipchat.com; our paid support contracts
+recommend contacting support@zulip.com; our paid support contracts
 include assistance with understanding GDPR compliance with Zulip.

templates/zerver/help/import-from-gitter.md

@@ -29,7 +29,7 @@ First, export your data from Gitter.
 
 ### Import into zulipchat.com
 
-Email support@zulipchat.com with `gitter_data.zip` and your desired
+Email support@zulip.com with `gitter_data.zip` and your desired
 subdomain. Your imported organization will be hosted at
 `<subdomain>.zulipchat.com`.
 

templates/zerver/help/import-from-hipchat.md

@@ -78,7 +78,7 @@ download the file.
 
 ### Import into zulipchat.com
 
-Email support@zulipchat.com with your exported archive and your desired Zulip
+Email support@zulip.com with your exported archive and your desired Zulip
 subdomain. Your imported organization will be hosted at
 `<subdomain>.zulipchat.com`.
 

templates/zerver/help/import-from-mattermost.md

@@ -122,7 +122,7 @@ Replace `<username>` and `<server_ip>` with the appropriate values below.
 
 ### Import into zulipchat.com
 
-Email support@zulipchat.com with your exported archive,
+Email support@zulip.com with your exported archive,
 the name of the Mattermost team you want to import, and your desired Zulip
 subdomain. Your imported organization will be hosted at
 `<subdomain>.zulipchat.com`.

templates/zerver/help/import-from-slack.md

@@ -58,7 +58,7 @@ This step will also generate a different token starting with
 
 ### Import into zulipchat.com
 
-Email support@zulipchat.com with `slack_data.zip`, the Slack API token
+Email support@zulip.com with `slack_data.zip`, the Slack API token
 generated above, and your desired subdomain. Your imported organization will
 be hosted at `<subdomain>.zulipchat.com`.
 

templates/zerver/help/message-retention-policy.md

@@ -19,7 +19,7 @@ Zulip's system supports:
 In Zulip Cloud, message retention policies are available on the Zulip
 Cloud Standard and Zulip Cloud Plus [plans](https://zulip.com/plans),
 as well as for the hundreds of communities with sponsored Cloud
-Standard hosting.  Contact support@zulipchat.com if you're on one of
+Standard hosting.  Contact support@zulip.com if you're on one of
 these plans and would like to enable it.
 
 ## Important details

templates/zerver/help/saml-authentication.md

@@ -22,7 +22,7 @@ Zulip with various common SAML Identity Providers.
        `first_name` to `user.firstName`, and `last_name` to `user.lastName`.
 1. Assign the appropriate accounts in the "Assignments" tab. These are the users
    that will be able to log in to your Zulip organization.
-1. Send the following information to us at support@zulipchat.com:
+1. Send the following information to us at support@zulip.com:
      * The URL of your zulipchat-hosted organization.
      * The "Identity Provider metadata" provided by Okta for the application.
      * The name "X" that will be displayed on the "Log in with X" button in Zulip.
@@ -48,7 +48,7 @@ Zulip with various common SAML Identity Providers.
     Make sure to set the "Include in SAML assertion" flag on these parameters.
 
 1. The OneLogin side of configuration should be ready!
-   Send the following information to us at support@zulipchat.com:
+   Send the following information to us at support@zulip.com:
      * The URL of your zulipchat-hosted organization.
      * The issuer URL from the "SSO" section. It contains Identity Provider metadata that we will need.
      * The name "X" that will be displayed on the "Log in with X" button in Zulip.

zerver/forms.py

@@ -40,7 +40,7 @@ from two_factor.utils import totp_digits
 MIT_VALIDATION_ERROR = 'That user does not exist at MIT or is a ' + \
                        '<a href="https://ist.mit.edu/email-lists">mailing list</a>. ' + \
                        'If you want to sign up an alias for Zulip, ' + \
-                       '<a href="mailto:support@zulipchat.com">contact us</a>.'
+                       '<a href="mailto:support@zulip.com">contact us</a>.'
 WRONG_SUBDOMAIN_ERROR = "Your Zulip account is not a member of the " + \
                         "organization associated with this subdomain.  " + \
                         "Please contact your organization administrator with any questions."