Please enter one of the following:
What is SMTP?
Do you add advertising to my emails?
What is the maximum size of message I can send?
Which email programs are not compatible?
Which email programs are compatible with AuthSMTP?
My ISP blocks SMTP on port 25 - what can I do?
What type of authentication should I use?
Can I change my username and password?
Can I use AuthSMTP to send bulk email?
How do I know which account I need?
Does AuthSMTP use POP-before-SMTP?
How can I pay?
My ISP proxies SMTP port 25 - is there an alternative port?
How do I renew my AuthSMTP service?
Can I upgrade my service and how much will it cost?
Do you offer a FREE or trial SMTP service?
My email gets caught as SPAM - can AuthSMTP help?
Why does it say "GetOnline" on my credit / bank statement?
Why should I not use personal SMTP server software?
What is the maximum number of recipients I can send to per message through your service?
Do you block any domains or email addresses?
Why do I need an email address to sign up?
Can I use AuthSMTP to send mail from multiple email addresses?
What do the SMTP error / reply codes mean?
How do the message number and size quotas work?
Can I use one AuthSMTP account on more than one computer?
How do I access the online AuthSMTP control panel?
I get a 'not authorized to send' error message?
Do I have to change my POP3 server or POP3 username / password?
How do you detect and stop SPAM / email abuse?
Where are your servers based?
Should I use the default or alternate SMTP port settings with the SMTP server?
Does AuthSMTP work with SMIME - S/MIME?
Do you offer a reseller package / discount or affiliate scheme for AuthSMTP?
Do you have any information to reduce the spam I receive?
Do you offer telephone support for your outgoing email service?
Do you virus scan my outgoing mail?
Can unused quota be carried over to the next month?
Can I limit the size of attachments that can be sent?
Do you support Apple Macs, MacBooks, iPhones, iPads, iPod Touch?
Can I authenticate to the SMTP server on the 'from' address only?
Can I authorise my whole domain name to send through your SMTP service?
Can I connect to the IP address of your SMTP relay server?
Do I get a POP3 mailbox with AuthSMTP?
How do I recover my username / password?
Why do the Microsoft Outlook 'Test Account Settings' Fail?
Why should I not just use webmail when mobile?
In the Control Panel - what is the 'admin' email address?
Will my IP address show in the email headers?
Can I authenticate based on my IP address only?
Do I have to change my email program?
Do you support SSL / TLS encrypted connections?
Can I take a copy (duplicate) of emails sent?
Do you keep a log of messages sent?
Do you offer shorter term or monthly billing accounts?
How many concurrent connections / threads can I use?
How can I avoid getting spam complaints?
Do you offer an anonymous SMTP service?
What is SPF? (Sender Policy Framework)
I get SSL errors when sending email?
I cannot login to the Control Panel...
Why is it best to send email as one message per recipient?
What happens if I exceed my quota?
Will my email address change - do I send from ???@authsmtp.com?
Is AuthSMTP a software program I install?
Do I need to make changes to my MX (mail exchange) records?
Can I send email from a form on my website?
Can you handle .uk.com and other domain types?
Why do you use PayPal for payments?
Can I have a dedicated IP address with my account?
Can I download a raw log file of my message history?
Can I renew my AuthSMTP account early?
Will you auto-renew my AuthSMTP account when it is due for renewal?
What is an Email Address Re-write?
Do you offer DKIM signing and support?
In the Control Panel - what is the 'complaints' address?
Why do my messages grow in size when I send them via AuthSMTP?
What is Google Analytics and how can I use it to track my emails?
Can I send from an email address that does not exist?
Do you provide an Web API?
What SMTP ports can I use?
How do I setup AuthSMTP?
Can I use AuthSMTP for automatic email forwarding?
Does AuthSMTP support the SMTP pipelining extension?
Everything you need to know about complaints
Do you send DSN / NDR (delivery status notification / non-delivery report / bounce) emails?
How do I change the hostname and from address on my Amazon EC2 instance when using AuthSMTP?
How do I redirect DSN / NDR / Bounce emails to another email address?
How can I protect my website contact forms from abuse using a CAPTCHA?
Can other AuthSMTP users send from my domain name?
What is DMARC and how do I use it?
Apple iPad - iOS14 - Setup Guide
How can I whitelist AuthSMTP's network?
How can I whitelist the AuthSMTP network on a Microsoft Exchange server?
Gmail / Google - This message does not have authentication information or fails to pass authentication checks
AuthSMTP is the outgoing SMTP email service for your e-commerce website, mailing list or email program.
It works on most current computers or devices and solves many of the common problems with sending email such as relaying denied errors or blacklisting issues.
With instant setup, a money back guarantee and very low cost starter accounts you can test and start sending email in minutes with no risk.