To order by phone, please call us at:

USA toll-free: (800) 768-2929
International: (510) 844-1600

To order by purchase order, Fax your order, your contact information, and email address to (510) 844-1598. Note that we only accept purchase orders from the U.S. and Canada.

We accept major credit cards

Then, please mail an original copy to:

Lyris Technologies, Inc.
Attn: Sales Dept
5858 Horton Street, Suite 270
Emeryville, CA 94608

Once your P.O. is approved, we will email you the relevant information to get started using the software you have purchased.

Upgrade Policy

Upgrading from v3.x to v4.0 or v4.2

MailShield Server has two distinct feature sets, Standard and Pro. The Standard feature set corresponds with the previous, single feature set offered in MailShield Server 3.x and earlier.

If you have a valid Comprehensive Support package for MailShield Server 3.x, you may upgrade to MailShield Server 4.0 Standard at no charge. If you have an Essential Support package, you may apply a 50% credit of the price paid for your existing license to your upgrade purchase of a 4.0 Standard license.

If you have a valid Comprehensive or Essential Support package for MailShield Server 3.x, you may apply a 100% or 50% credit (respectively) of the price paid for your existing license to your upgrade purchase of a 4.2 Pro license.

Please contact us to learn more about MailShield Server 4.0 and 4.2 features, technical requirements, and pricing.

Upgrading from v1.x-2.x to v4.0 or v4.2

If you have an older MailShield Server license, please contact us for upgrade information.

Upgrade Instructions

These instructions are for the release version of MailShield Server 4.0 Standard and MailShield Server 4.1 Pro. Before you upgrade, please read the information below carefully.

Use your Serial Number—or Contact Us

Depending on your existing MailShield Server license and Support Contact, you may need to contact us for an evaluation or replacement Serial Number in order to run v4.1 at your licensed level.

Back up existing installation

Be sure to back up your MailShield Server directory and database if running 4.1 Pro. If you are running MailShield Server 2.x or higher, MailShield Server will automatically migrate your old settings to the new installation.

Talk to us

Please report any bugs, trouble-spots or questions to customer support. Refer to the online support resources if you have immediate questions.