Catch-All Email FAQ
Everything about AllMail.one, from POP3 setup to crypto payments, rental terms and domain health.
This page answers the practical questions that come up once you are actually wiring a catch-all email service into a link building stack: which server and port to use, how many connections you may hold open, what a term discount really costs, and what happens on the day a subscription runs out. If you are still deciding whether a catchall email domain is the right tool at all, the overview on the home page covers the basics first.
Every answer below describes how AllMail.one behaves today, not a roadmap. Where a limit exists, retention, concurrent sessions, maximum rental term, it is stated plainly, because a limit discovered in the middle of a campaign costs far more than the subscription does.
What is a catch-all email?
A catch-all email address receives every email sent to any address at your domain, regardless of whether that specific address exists. For example, if you own example.com, emails to anything@example.com, test123@example.com, or randomstring@example.com all land in the same inbox. This is essential for link building tools like GSA SER that auto-generate registration email addresses.
Do I need to verify my identity to sign up?
No. AllMail.one requires zero KYC. We don't ask for your name, phone number, government ID, or any personal information. All we need is a crypto payment and you're set up and receiving emails.
Which cryptocurrencies do you accept?
We accept USDT and USDC on the TRC-20 (Tron), BEP-20 (BSC) and Polygon networks. Transactions are fast, fees are minimal, and payments are processed automatically. Your account activates within minutes of confirmation.
What happens when a domain needs replacement?
When a domain gets blacklisted or stops performing, our support team contacts you proactively and helps replace it with a fresh domain. The process is quick and hassle-free. Domain replacement support is available on Standard .one and Premium .com plans.
Can I connect GSA SER or RankerX directly?
Yes. Both GSA SER and RankerX support POP3 and IMAP protocols natively. You'll receive your server credentials immediately after activation and can configure your tools in under 5 minutes.
What happens if my domain gets blacklisted?
Our DNSBL monitoring checks your domain against major blacklists continuously. You'll receive an instant alert in your dashboard if your domain appears on any list. On plans with domain replacement support, our team will proactively contact you and help provision a fresh domain.
What are the exact POP3 and IMAP settings?
Your mail server is mail.allmail.one on every plan. POP3 runs on port 995 with SSL (110 without), IMAP on 993 with SSL (143 without). The login is always catchall@yourdomain, one account that collects mail for every address on the domain, and the password is shown in your dashboard, where you can rotate it at any time without touching DNS. Those four values are all that GSA Search Engine Ranker, RankerX or Thunderbird ever ask for, and we recommend the SSL ports everywhere.
How many connections can I keep open at once?
Up to 10 simultaneous IMAP sessions per account. That is deliberately generous for automation: a link building tool normally holds a single connection, so ten leaves room for several tools plus a desktop client and your own scripts at the same time. If you run a large stack, close idle sessions instead of opening one per worker. Most POP3 clients disconnect after each check anyway, so in normal use the limit is very hard to reach.
How long can I rent a domain, and how do term discounts work?
Terms are 1, 3, 6 or 9 months, and 9 months is the maximum in a single order. Longer terms cut the monthly rate: 10% off for 3 months, 20% for 6 months, 30% for 9. The price shown on each plan card is already the per-month rate for the selected term, and the total is charged once at the start. Premium .com begins at a 3-month term because .com registration itself is sold by the year; the other plans can be taken for a single month.
What happens when my subscription expires?
It moves into a 7-day grace period first. During grace your domain keeps accepting mail: nothing is deleted and no registration breaks mid-campaign, and a renewal button appears in the dashboard. Renewing charges the new term from your balance and restarts it from that moment. If the grace period passes without a renewal, the subscription is suspended and the domain returns to our pool, so renew before the seventh day ends if you want to keep that exact name.
How do payments and the account balance work?
Subscriptions are always paid from your internal balance, and the balance is topped up with crypto: USDT or USDC on TRC-20, BEP-20 or Polygon. A top-up is between $5 and $1000 per transaction, we add 0% on top, and the amount credited is the amount you sent. Keeping a balance means renewals and extra domains are one click instead of a new on-chain transfer every time, which is why activation after a top-up is effectively instant.
Can I send email from my catch-all domain?
No. AllMail.one is receive-only by design. The domain accepts incoming mail on port 25 and hands it to you over POP3 or IMAP, but there is no SMTP submission service and no way to send from catchall@yourdomain. For link building that is exactly right: verification links arrive, nothing goes out, and the domain never builds a sending reputation that could get it listed. If you also need outbound mail, use a separate sending provider.
Still have questions?
Can't find the answer you are looking for? Write to support: a ticket from your dashboard and an email reach the same team.