Frequently Asked Questions
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?
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?
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?
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