Download invoices, transaction receipts, and payment confirmations.
Access and Manage Invoices: A Guide for MailSlurp Clients. Follow these easy steps to view and download invoices via the Stripe billing portal.
Read answerSupport
Find answers for account access, billing, sending, receiving, and API issues, or contact the team when you need direct help.
Support guides and common fixes
28 resources
Whitelist email addresses
Request recipient domain allowlisting for approved external email sending.
Read answerMailSlurp customer survey
Share product feedback with the MailSlurp team through the customer survey so we can better understand your experience and support needs.
Read answerIncrease the length: Timeout health and 502 exceptions.
Prevent HTTP timeouts and socket exceptions when calling the MailSlurp API by configuring client timeouts within your SDK client.
Read answerTroubleshooting SMTP 530 Errors (Gmail, Yahoo, and Custom Domains)
Diagnose SMTP 530 errors by validating MX records, authentication settings, and domain routing configuration for MailSlurp custom domains.
Read answerSendGrid 530 Error with MailSlurp: SMTP and Inbound Delivery Checks
Troubleshoot SendGrid 530 and 550 delivery errors with MailSlurp inbox evidence, SMTP diagnostics, headers, DNS checks, and deliverability workflows.
Read answerRefund request
Request a refund review for your MailSlurp subscription.
Read answerCreate and accept a MailSlurp quote
Step by step guide for purchasing MailSlurp using a quote
Read answerMailSlurp Account Access Troubleshooting
Troubleshoot MailSlurp login failures, including password issues, magic-link problems, and organization portal access errors.
Read answerManaging your account subscription is crucial for maintaining your services.
How to configure your billing and subscription aspects of your MailSlurp account and view billing information.
Read answerManage Organization Users in MailSlurp
Learn how to add or remove team members, manage organization access, and enforce secure user lifecycle controls in MailSlurp.
Read answerMailSlurp Domain Pool Support Guide
Understand how MailSlurp domain pools work, when to use pooled domains, and how to combine pool usage with custom domains for resilient testing workflows.
Read answerThe inbox is currently not receiving any emails.
How to debug and fix common issues when sending and receiving emails with MailSlurp inboxes and email accounts
Read answerEmail i18n and localization is important for global communication.
How to support non-English languages in SMTP email when using ASCII encoding for non-ASCII charsets. Special character punycode guide.
Read answerHelp and support guides for MailSlurp are available here.
We are always here to support you. Please find our support guide articles or contact us directly to ask any questions.
Read answerGrant support access to your account for assistance.
How to enable MailSlurp support team access to your account to debug issues you are experiencing with the app or API.
Read answerUnfreeze frozen account
Request a review if your account was frozen for complaints or bounces.
Read answerThe limitations of the free plan are as follows:
MailSlurps free Email API is a great way to build and test applications but has some rate limits. Consider upgrading for more use.
Read answerFrequently Asked Questions for MailSlurp
Frequently asked questions about MailSlurp email and SMTP API service. What features and protocols are available.
Read answerInbox permanency and expiration are important to consider.
Support guide for inbox expiration using MailSlurp temporary inbox feature. How to create throw-away disposable email addresses.
Read answerSpeak with support
Contact MailSlurp support for account, API, or platform help.
Read answerChange MailSlurp account email address to a new one.
Support article for how to change your email address when using the MailSlurp app and grant access using a password.
Read answerManage billing information, invoices, and payment records.
Update billing and subscription information for your MailSlurp organization. See payment history and download invoices.
Read answerPlease confirm if you want to cancel your plan or delete your account.
You can manage your account in the MailSlurp dashboard. Upgrade or downgrade your subscription and manage payments and billing.
Read answerReport a bug
Open a ticket and our engineers will investigate and reply.
Read answerManaging billing and invoices efficiently is crucial for success.
Manage subscription payments and invoices in the MailSlurp billing portal. Upgrade or cancel your plan and view payment history.
Read answerBilling support
Submit a billing question about invoices, subscription changes, or payments.
Read answer554 Email rejected. Please check your email address and try again.
How to diagnose 554 smtp errors and configure your mail client to send email correctly to custom domains with MailSlurp
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